http://100.damki.net/problem/29 0.4 http://100.damki.net/answer/29 0.3 http://100.damki.net/problem/30 0.4 http://100.damki.net/answer/30 0.3 http://100.damki.net/problem/21 0.4 http://100.damki.net/answer/21 0.3 http://100.damki.net/problem/24 0.4 http://100.damki.net/answer/24 0.3 http://100.damki.net/problem/25 0.4 http://100.damki.net/answer/25 0.3 http://100.damki.net/problem/26 0.4 http://100.damki.net/answer/26 0.3 http://100.damki.net/problem/27 0.4 http://100.damki.net/answer/27 0.3 http://100.damki.net/problem/12 0.4 http://100.damki.net/answer/12 0.3 http://100.damki.net/problem/13 0.4 http://100.damki.net/answer/13 0.3 http://100.damki.net/problem/14 0.4 http://100.damki.net/answer/14 0.3 http://100.damki.net/problem/15 0.4 http://100.damki.net/answer/15 0.3 http://100.damki.net/problem/16 0.4 http://100.damki.net/answer/16 0.3 http://100.damki.net/problem/18 0.4 http://100.damki.net/answer/18 0.3 http://100.damki.net/problem/20 0.4 http://100.damki.net/answer/20 0.3