["f6-f9","e18-e15","e3-e6","b18-e18","b3-e3","r18-r16","o6-o9","r15-r8","r3-r6","r9-p9","r6-r8","o9-p9","s8-r9","o9-p9","s9-r9","o18-p17","m7-j7","q17-q15","m3-m13","p15-o14","l13-m14","p14-o14","l14-m15","p14-o13","r8-o11","o19-o17","n11-n13","p17-n15","j3-m6","s16-p13","m6-m13","p11-o12","l13-l16","m19-m18","l15-m16","l19-m18","g3-j3","m18-m17","j3-g3","m17-m15","e6-e9","m15-j12","e9-h9","j12-i11","h8-i9","g12-h11","k11-j10","j18-j16","j8-e13","i15-i5"]