["i6-i9","c18-c17","l6-l9","f18-e17","i3-i6","c17-c15","f6-f9","b15-c14","i6-f6","e15-d16","f9-f12","f18-e17","f6-f9","d16-e17","f9-c9","j13-h15","c9-c12","i18-i11","f3-l9","g15-g16","l9-k10","f18-f17","k10-j11","c15-c14","c11-c12","g11-h12","g11-h12","c3-f3","h12-j14","c13-c9","l14-h14","j11-n15","h14-g14","n15-o16","o19-o18","f3-f7","f16-i16","o15-l15","f13-g14","l15-l16"]