["i6-i8","l15-l12","l6-l9","p15-n13","h8-j10","r15-r12","e6-g8","m12-l11","g9-j9","m12-k10","i3-i8","r18-r13","i8-i13","r12-r8","i13-g13","r8-r5","r2-r3","r6-r5","g13-q13","o18-q16"]