["c3-c6","s15-q13","c6-c13","o13-q11","c13-e13","q11-s9","e13-h13","s11-s8","i3-i6","m15-k13","i6-i11","r18-r9","i10-i11","r9-c9","i12-h12","c9-s9","h13-h16","l18-m17","f3-e4","s8-s6"]