["i6-i9","o15-o13","e6-g8","m15-k13","m6-k8","j13-j11","g8-i10","r18-r16","r6-r9","r15-r14","n6-o7","n13-o12","o7-p8","o12-q10","c6-c9","q10-r9","k10-j11","e15-h12","c3-c9","l18-l15","j3-j5"]