["s6-p9","o15-o12","o9-o10","p18-p15","n10-q13","p16-q15","r3-r13","p15-q15","r12-r13","k14-m14","r13-r14","r18-r16","r13-r14","s17-r16","o3-r6","e18-e16","r6-p8","e16-e15","p8-j14","b18-e18","j14-h16","i19-h18","h15-h16","h19-h18","h15-i16","l18-k18","b6-e9","f18-g17","f6-f8","g17-n10","f9-f13","n10-n5"]