["i6-i9","e18-e15","e3-e6","b18-e18","e6-e9","p18-p16","i3-i9","p15-k10","l6-l9","k12-l11","h9-h13","m14-j14","p6-m9","j10-k10","h12-h13","l10-k9","h13-h16","l19-k19","h16-i16"]