["i6-i9","l15-l13","r6-r8","o15-o14","h9-k12","p13-m13","n7-p7","h15-j13","m6-j9","k13-n13","s8-p11","s15-p12","e6-g8","e18-e16","h9-o16","e15-o5","o16-p17","p5-p4","r8-p6","m7-n6","i3-i16","p5-n5"]