["r6-r8","r15-r13","r8-r10","r13-r12","r3-r10","r18-r12","l6-l8","r12-c12","c6-c9","c12-r12","r9-r10","r13-r12","r9-r10","o18-s14","r10-r11","r14-r13","l8-l11","l17-r17"]