diff --git a/2/43.png b/2/43.png
deleted file mode 100644
index 1201e1b..0000000
Binary files a/2/43.png and /dev/null differ
diff --git a/2/8.png b/2/8.png
deleted file mode 100644
index 7df3dec..0000000
Binary files a/2/8.png and /dev/null differ
diff --git a/3/0.png b/3/0.png
deleted file mode 100644
index 82c660a..0000000
Binary files a/3/0.png and /dev/null differ
diff --git a/Easy/img/END.png b/Easy/img/END.png
deleted file mode 100644
index f90a9f7..0000000
Binary files a/Easy/img/END.png and /dev/null differ
diff --git a/Easy/prg/16_003.png b/Easy/prg/16_003.png
deleted file mode 100644
index 199786b..0000000
Binary files a/Easy/prg/16_003.png and /dev/null differ
diff --git a/Easy/prg/19_003.png b/Easy/prg/19_003.png
deleted file mode 100644
index b3b1e94..0000000
Binary files a/Easy/prg/19_003.png and /dev/null differ
diff --git a/Easy/prg/35_007.png b/Easy/prg/35_007.png
deleted file mode 100644
index 32ae542..0000000
Binary files a/Easy/prg/35_007.png and /dev/null differ
diff --git a/Easy/prg/38_006.png b/Easy/prg/38_006.png
deleted file mode 100644
index 43bf847..0000000
Binary files a/Easy/prg/38_006.png and /dev/null differ
diff --git a/Easy/prg/38_008.png b/Easy/prg/38_008.png
deleted file mode 100644
index 957d410..0000000
Binary files a/Easy/prg/38_008.png and /dev/null differ
diff --git a/Easy/prg/45_001.png b/Easy/prg/45_001.png
deleted file mode 100644
index f250b3f..0000000
Binary files a/Easy/prg/45_001.png and /dev/null differ
diff --git a/Easy/prg/45_005.png b/Easy/prg/45_005.png
deleted file mode 100644
index 220658f..0000000
Binary files a/Easy/prg/45_005.png and /dev/null differ
diff --git a/Easy/prg/45_006.png b/Easy/prg/45_006.png
deleted file mode 100644
index d00ee6d..0000000
Binary files a/Easy/prg/45_006.png and /dev/null differ
diff --git a/Easy/prg/45_007.png b/Easy/prg/45_007.png
deleted file mode 100644
index eac7a17..0000000
Binary files a/Easy/prg/45_007.png and /dev/null differ
diff --git a/Easy/prg/45_008.png b/Easy/prg/45_008.png
deleted file mode 100644
index 675c4d4..0000000
Binary files a/Easy/prg/45_008.png and /dev/null differ
diff --git a/Easy/prg/45_009.png b/Easy/prg/45_009.png
deleted file mode 100644
index bf7adbe..0000000
Binary files a/Easy/prg/45_009.png and /dev/null differ
diff --git a/Easy/prg/45_010.png b/Easy/prg/45_010.png
deleted file mode 100644
index b814228..0000000
Binary files a/Easy/prg/45_010.png and /dev/null differ
diff --git a/Easy/prg/45_011.png b/Easy/prg/45_011.png
deleted file mode 100644
index fece706..0000000
Binary files a/Easy/prg/45_011.png and /dev/null differ
diff --git a/Easy/prg/45_012.png b/Easy/prg/45_012.png
deleted file mode 100644
index 4c431a9..0000000
Binary files a/Easy/prg/45_012.png and /dev/null differ
diff --git a/Easy/prg/48_006.png b/Easy/prg/48_006.png
deleted file mode 100644
index e9fb48b..0000000
Binary files a/Easy/prg/48_006.png and /dev/null differ
diff --git a/Easy/prg/50_005.png b/Easy/prg/50_005.png
deleted file mode 100644
index 330724b..0000000
Binary files a/Easy/prg/50_005.png and /dev/null differ
diff --git a/Easy/prg/51_016.png b/Easy/prg/51_016.png
deleted file mode 100644
index e89412b..0000000
Binary files a/Easy/prg/51_016.png and /dev/null differ
diff --git a/Easy/prg/53_003.png b/Easy/prg/53_003.png
deleted file mode 100644
index f7733e9..0000000
Binary files a/Easy/prg/53_003.png and /dev/null differ
diff --git a/Easy/prg/55_017.png b/Easy/prg/55_017.png
deleted file mode 100644
index e349e73..0000000
Binary files a/Easy/prg/55_017.png and /dev/null differ
diff --git a/Easy/prg/59_005.png b/Easy/prg/59_005.png
deleted file mode 100644
index a409c75..0000000
Binary files a/Easy/prg/59_005.png and /dev/null differ
diff --git a/Easy/prg/64_015.png b/Easy/prg/64_015.png
deleted file mode 100644
index 48c79e2..0000000
Binary files a/Easy/prg/64_015.png and /dev/null differ
diff --git a/Easy/prg/6_009.png b/Easy/prg/6_009.png
deleted file mode 100644
index e5c7d58..0000000
Binary files a/Easy/prg/6_009.png and /dev/null differ
diff --git a/Easy/prg/70_003.png b/Easy/prg/70_003.png
deleted file mode 100644
index be89155..0000000
Binary files a/Easy/prg/70_003.png and /dev/null differ
diff --git a/Easy/prg/70_004.png b/Easy/prg/70_004.png
deleted file mode 100644
index b2de895..0000000
Binary files a/Easy/prg/70_004.png and /dev/null differ
diff --git a/Easy/prg/71_004.png b/Easy/prg/71_004.png
deleted file mode 100644
index 3124477..0000000
Binary files a/Easy/prg/71_004.png and /dev/null differ
diff --git a/Hard/img/1.png b/Hard/img/1.png
deleted file mode 100644
index e37420d..0000000
Binary files a/Hard/img/1.png and /dev/null differ
diff --git a/Hard/prg/1/005.png b/Hard/prg/1/005.png
deleted file mode 100644
index ba313cd..0000000
Binary files a/Hard/prg/1/005.png and /dev/null differ
diff --git a/Hard/prg/1/007.png b/Hard/prg/1/007.png
deleted file mode 100644
index f399b2c..0000000
Binary files a/Hard/prg/1/007.png and /dev/null differ
diff --git a/Hard/prg/1/008.png b/Hard/prg/1/008.png
deleted file mode 100644
index cfa82da..0000000
Binary files a/Hard/prg/1/008.png and /dev/null differ
diff --git a/Hard/prg/1/011.png b/Hard/prg/1/011.png
deleted file mode 100644
index a73f6b9..0000000
Binary files a/Hard/prg/1/011.png and /dev/null differ
diff --git a/Hard/prg/1/012.png b/Hard/prg/1/012.png
deleted file mode 100644
index 4f3a46f..0000000
Binary files a/Hard/prg/1/012.png and /dev/null differ
diff --git a/Hard/prg/1/013.png b/Hard/prg/1/013.png
deleted file mode 100644
index a3dd460..0000000
Binary files a/Hard/prg/1/013.png and /dev/null differ
diff --git a/Hard/prg/1/014.png b/Hard/prg/1/014.png
deleted file mode 100644
index f5cdb19..0000000
Binary files a/Hard/prg/1/014.png and /dev/null differ
diff --git a/Hard/prg/11/0.png b/Hard/prg/11/0.png
deleted file mode 100644
index 8e4a3ce..0000000
Binary files a/Hard/prg/11/0.png and /dev/null differ
diff --git a/Hard/prg/11/6.png b/Hard/prg/11/6.png
deleted file mode 100644
index 60835e9..0000000
Binary files a/Hard/prg/11/6.png and /dev/null differ
diff --git a/Hard/prg/12/12.png b/Hard/prg/12/12.png
deleted file mode 100644
index f2235b3..0000000
Binary files a/Hard/prg/12/12.png and /dev/null differ
diff --git a/Hard/prg/3/029.png b/Hard/prg/3/029.png
deleted file mode 100644
index bebbb62..0000000
Binary files a/Hard/prg/3/029.png and /dev/null differ
diff --git a/Hard/prg/3/031.png b/Hard/prg/3/031.png
deleted file mode 100644
index f8b76a7..0000000
Binary files a/Hard/prg/3/031.png and /dev/null differ
diff --git a/Hard/prg/4/008.png b/Hard/prg/4/008.png
deleted file mode 100644
index ddda473..0000000
Binary files a/Hard/prg/4/008.png and /dev/null differ
diff --git a/Hard/prg/4/016.png b/Hard/prg/4/016.png
deleted file mode 100644
index 7a88026..0000000
Binary files a/Hard/prg/4/016.png and /dev/null differ
diff --git a/Hard/prg/6/10.png b/Hard/prg/6/10.png
deleted file mode 100644
index d545995..0000000
Binary files a/Hard/prg/6/10.png and /dev/null differ
diff --git a/Hard/prg/6/9.png b/Hard/prg/6/9.png
deleted file mode 100644
index cf79175..0000000
Binary files a/Hard/prg/6/9.png and /dev/null differ
diff --git a/Hard/prg/7/15.png b/Hard/prg/7/15.png
deleted file mode 100644
index 4aa0e78..0000000
Binary files a/Hard/prg/7/15.png and /dev/null differ
diff --git a/Hard/prg/7/16.png b/Hard/prg/7/16.png
deleted file mode 100644
index c7834c9..0000000
Binary files a/Hard/prg/7/16.png and /dev/null differ
diff --git a/Hard/prg/7/7.png b/Hard/prg/7/7.png
deleted file mode 100644
index b381f50..0000000
Binary files a/Hard/prg/7/7.png and /dev/null differ
diff --git a/Hard/prg/8/10.png b/Hard/prg/8/10.png
deleted file mode 100644
index df30472..0000000
Binary files a/Hard/prg/8/10.png and /dev/null differ
diff --git a/Hard/prg/8/11.png b/Hard/prg/8/11.png
deleted file mode 100644
index 7983b10..0000000
Binary files a/Hard/prg/8/11.png and /dev/null differ
diff --git a/Hard/prg/8/12.png b/Hard/prg/8/12.png
deleted file mode 100644
index 8149407..0000000
Binary files a/Hard/prg/8/12.png and /dev/null differ
diff --git a/Hard/prg/8/13.png b/Hard/prg/8/13.png
deleted file mode 100644
index 4bce44a..0000000
Binary files a/Hard/prg/8/13.png and /dev/null differ
diff --git a/Hard/prg/8/14.png b/Hard/prg/8/14.png
deleted file mode 100644
index bcfb1ea..0000000
Binary files a/Hard/prg/8/14.png and /dev/null differ
diff --git a/Hard/prg/8/15.png b/Hard/prg/8/15.png
deleted file mode 100644
index bba0c9d..0000000
Binary files a/Hard/prg/8/15.png and /dev/null differ
diff --git a/Hard/prg/8/16.png b/Hard/prg/8/16.png
deleted file mode 100644
index 861545e..0000000
Binary files a/Hard/prg/8/16.png and /dev/null differ
diff --git a/Hard/prg/8/17.png b/Hard/prg/8/17.png
deleted file mode 100644
index 845aee9..0000000
Binary files a/Hard/prg/8/17.png and /dev/null differ
diff --git a/Hard/prg/8/18.png b/Hard/prg/8/18.png
deleted file mode 100644
index fb27d4b..0000000
Binary files a/Hard/prg/8/18.png and /dev/null differ
diff --git a/Hard/prg/8/19.png b/Hard/prg/8/19.png
deleted file mode 100644
index e2a07b1..0000000
Binary files a/Hard/prg/8/19.png and /dev/null differ
diff --git a/Hard/prg/8/20.png b/Hard/prg/8/20.png
deleted file mode 100644
index 9778e7f..0000000
Binary files a/Hard/prg/8/20.png and /dev/null differ
diff --git a/Hard/prg/8/21.png b/Hard/prg/8/21.png
deleted file mode 100644
index 56850b0..0000000
Binary files a/Hard/prg/8/21.png and /dev/null differ
diff --git a/Hard/prg/8/22.png b/Hard/prg/8/22.png
deleted file mode 100644
index c7b5dae..0000000
Binary files a/Hard/prg/8/22.png and /dev/null differ
diff --git a/Hard/prg/8/23.png b/Hard/prg/8/23.png
deleted file mode 100644
index c067b21..0000000
Binary files a/Hard/prg/8/23.png and /dev/null differ
diff --git a/Hard/prg/8/24.png b/Hard/prg/8/24.png
deleted file mode 100644
index 5e02fc0..0000000
Binary files a/Hard/prg/8/24.png and /dev/null differ
diff --git a/Hard/prg/8/25.png b/Hard/prg/8/25.png
deleted file mode 100644
index cefba05..0000000
Binary files a/Hard/prg/8/25.png and /dev/null differ
diff --git a/Hard/prg/8/26.png b/Hard/prg/8/26.png
deleted file mode 100644
index a8cbaa6..0000000
Binary files a/Hard/prg/8/26.png and /dev/null differ
diff --git a/Hard/prg/8/27.png b/Hard/prg/8/27.png
deleted file mode 100644
index bcf9b55..0000000
Binary files a/Hard/prg/8/27.png and /dev/null differ
diff --git a/Hard/prg/8/34.png b/Hard/prg/8/34.png
deleted file mode 100644
index d9bc9e7..0000000
Binary files a/Hard/prg/8/34.png and /dev/null differ
diff --git a/Hard/prg/8/9.png b/Hard/prg/8/9.png
deleted file mode 100644
index 31a8adc..0000000
Binary files a/Hard/prg/8/9.png and /dev/null differ
diff --git a/Hard/prg/9/12.png b/Hard/prg/9/12.png
deleted file mode 100644
index e6cecbc..0000000
Binary files a/Hard/prg/9/12.png and /dev/null differ
diff --git a/Hard/prg/9/26.png b/Hard/prg/9/26.png
deleted file mode 100644
index 7c9b92a..0000000
Binary files a/Hard/prg/9/26.png and /dev/null differ
diff --git a/Hard/prg/9/27.png b/Hard/prg/9/27.png
deleted file mode 100644
index 99ae144..0000000
Binary files a/Hard/prg/9/27.png and /dev/null differ
diff --git a/Hard/prg/9/28.png b/Hard/prg/9/28.png
deleted file mode 100644
index 2a4c70b..0000000
Binary files a/Hard/prg/9/28.png and /dev/null differ
diff --git a/Hard/prg/9/29.png b/Hard/prg/9/29.png
deleted file mode 100644
index 1c54ebb..0000000
Binary files a/Hard/prg/9/29.png and /dev/null differ
diff --git a/Hard/prg/9/30.png b/Hard/prg/9/30.png
deleted file mode 100644
index 60f7779..0000000
Binary files a/Hard/prg/9/30.png and /dev/null differ
diff --git a/Hard/prg/9/31.png b/Hard/prg/9/31.png
deleted file mode 100644
index 582b009..0000000
Binary files a/Hard/prg/9/31.png and /dev/null differ
diff --git a/Hard/prg/9/32.png b/Hard/prg/9/32.png
deleted file mode 100644
index 4cdd123..0000000
Binary files a/Hard/prg/9/32.png and /dev/null differ
diff --git a/Hard/prg/9/33.png b/Hard/prg/9/33.png
deleted file mode 100644
index 18d893c..0000000
Binary files a/Hard/prg/9/33.png and /dev/null differ
diff --git a/Hard/prg/9/34.png b/Hard/prg/9/34.png
deleted file mode 100644
index 6ca9dab..0000000
Binary files a/Hard/prg/9/34.png and /dev/null differ
diff --git a/Hard/prg/9/35.png b/Hard/prg/9/35.png
deleted file mode 100644
index f08176e..0000000
Binary files a/Hard/prg/9/35.png and /dev/null differ
diff --git a/Hard/prg/9/36.png b/Hard/prg/9/36.png
deleted file mode 100644
index a5e1c7a..0000000
Binary files a/Hard/prg/9/36.png and /dev/null differ
diff --git a/Hard/prg/9/37.png b/Hard/prg/9/37.png
deleted file mode 100644
index 35315ff..0000000
Binary files a/Hard/prg/9/37.png and /dev/null differ
diff --git a/Hard/prg/9/38.png b/Hard/prg/9/38.png
deleted file mode 100644
index 689c4cf..0000000
Binary files a/Hard/prg/9/38.png and /dev/null differ
diff --git a/Hard/prg/9/39.png b/Hard/prg/9/39.png
deleted file mode 100644
index 80f5125..0000000
Binary files a/Hard/prg/9/39.png and /dev/null differ
diff --git a/Hard/prg/9/40.png b/Hard/prg/9/40.png
deleted file mode 100644
index 5c98cc2..0000000
Binary files a/Hard/prg/9/40.png and /dev/null differ
diff --git a/Medium/img/30_graph.png b/Medium/img/30_graph.png
deleted file mode 100644
index 4f9439c..0000000
Binary files a/Medium/img/30_graph.png and /dev/null differ
diff --git a/Medium/prg/13_004.png b/Medium/prg/13_004.png
deleted file mode 100644
index c33d00b..0000000
Binary files a/Medium/prg/13_004.png and /dev/null differ
diff --git a/Medium/prg/14_001.png b/Medium/prg/14_001.png
deleted file mode 100644
index 39167da..0000000
Binary files a/Medium/prg/14_001.png and /dev/null differ
diff --git a/Medium/prg/24_002.png b/Medium/prg/24_002.png
deleted file mode 100644
index 02b0c18..0000000
Binary files a/Medium/prg/24_002.png and /dev/null differ
diff --git a/Medium/prg/26_002.png b/Medium/prg/26_002.png
deleted file mode 100644
index c205036..0000000
Binary files a/Medium/prg/26_002.png and /dev/null differ
diff --git a/Medium/prg/2_003.png b/Medium/prg/2_003.png
deleted file mode 100644
index 589f4b2..0000000
Binary files a/Medium/prg/2_003.png and /dev/null differ
diff --git a/Medium/prg/36_016.png b/Medium/prg/36_016.png
deleted file mode 100644
index 72be814..0000000
Binary files a/Medium/prg/36_016.png and /dev/null differ
diff --git a/Medium/prg/39_003.png b/Medium/prg/39_003.png
deleted file mode 100644
index ea0f6f2..0000000
Binary files a/Medium/prg/39_003.png and /dev/null differ
diff --git a/Medium/prg/41_010.png b/Medium/prg/41_010.png
deleted file mode 100644
index 2218195..0000000
Binary files a/Medium/prg/41_010.png and /dev/null differ
diff --git a/Medium/prg/47_004.png b/Medium/prg/47_004.png
deleted file mode 100644
index a4811d4..0000000
Binary files a/Medium/prg/47_004.png and /dev/null differ
diff --git a/Medium/prg/47_009.png b/Medium/prg/47_009.png
deleted file mode 100644
index d9459e0..0000000
Binary files a/Medium/prg/47_009.png and /dev/null differ
diff --git a/Medium/prg/47_010.png b/Medium/prg/47_010.png
deleted file mode 100644
index 466cfcb..0000000
Binary files a/Medium/prg/47_010.png and /dev/null differ
diff --git a/Medium/prg/47_011.png b/Medium/prg/47_011.png
deleted file mode 100644
index a295e88..0000000
Binary files a/Medium/prg/47_011.png and /dev/null differ
diff --git a/Medium/prg/47_012.png b/Medium/prg/47_012.png
deleted file mode 100644
index 515ec62..0000000
Binary files a/Medium/prg/47_012.png and /dev/null differ
diff --git a/Medium/prg/47_014.png b/Medium/prg/47_014.png
deleted file mode 100644
index 5f57f2e..0000000
Binary files a/Medium/prg/47_014.png and /dev/null differ
diff --git a/Medium/prg/47_015.png b/Medium/prg/47_015.png
deleted file mode 100644
index 714d7a2..0000000
Binary files a/Medium/prg/47_015.png and /dev/null differ
diff --git a/Medium/prg/47_017.png b/Medium/prg/47_017.png
deleted file mode 100644
index 8bef8ef..0000000
Binary files a/Medium/prg/47_017.png and /dev/null differ
diff --git a/Medium/prg/48_005.png b/Medium/prg/48_005.png
deleted file mode 100644
index edbd0e3..0000000
Binary files a/Medium/prg/48_005.png and /dev/null differ
diff --git a/Medium/prg/53_007.png b/Medium/prg/53_007.png
deleted file mode 100644
index df10df4..0000000
Binary files a/Medium/prg/53_007.png and /dev/null differ
diff --git a/Medium/prg/53_009.png b/Medium/prg/53_009.png
deleted file mode 100644
index f76ca4c..0000000
Binary files a/Medium/prg/53_009.png and /dev/null differ
diff --git a/Medium/prg/62_005.png b/Medium/prg/62_005.png
deleted file mode 100644
index ae6ade1..0000000
Binary files a/Medium/prg/62_005.png and /dev/null differ
diff --git a/Medium/prg/9_003.png b/Medium/prg/9_003.png
deleted file mode 100644
index 9113be7..0000000
Binary files a/Medium/prg/9_003.png and /dev/null differ
diff --git a/Tools/burp/13.png b/Tools/burp/13.png
deleted file mode 100644
index 61090e9..0000000
Binary files a/Tools/burp/13.png and /dev/null differ