11_nb19_nb8-9-10-11_sb1 0 0 0 1_se1 nb1_nb2 0 9 0 0 0 0 0 ne2 2_sb2 2 2 0 0 0 0 ne1_ne8-9-10-11_se2
11_6_nb3_nb5-6-7_sb8-9-10-11 0 6_9 0 0 ne3 3_sb3_sb4 0 5 7 0 0 7 4 0 se4 nb4 0 0 0 0 0 0 0 0 0 0 0 0 ne4_ne5-6-7_se3
5_sb5-6-7 5 0 0 0 0 7 0 11_6 6_9 0 0 0 ne19_se5-6-7_se8-9-10-11
nb16_nb17_nb18_sb19 17 17 0 0 0 0 0 0 0 0 17 0 0 0 0 0 ne16 16_sb16 0 0 0 0 0 0 0 ne17_se16
sb17 17 17 0 0 0 0 0 0 0 17 ne18_se17
sb13_sb18 18 0 0 13_18_se13 nb13_nb14_nb15 0 0 0 0 0 0 0 0 0 ne14 14_sb14 14 14 0 0 0 0 0 0 0 ne15_se14
nb12_sb15 0 0 0 15_18 0 0 15_18 0 0 0 ne12 sb12 12 0 ne13_se12_se15_se18_se19
