["f6-f9","f15-f12","i6-i9","j14-g14","j10-g10","m14-j14","e9-g11","b14-e14","o6-o9","i15-i13","k6-n9","p14-m14","s6-p9","e14-h14","b7-e7","m14-j14","o9-o12","i13-i10","e6-h9","l18-l15","r3-r9","c18-c5","r9-r13","l15-n13","c2-c3","n13-p13","c3-c4","p13-q13","c4-c5","q13-o13","t13-q13"]