nb1_nb16-17-18-19_nb9-10 0 0 0 17 10 0 0 0 0 0 0 0 0 0 0 0 0 0 ne1
1_nb2-3_sb1 1 1 1 0 17_3 10_3 3 3 3 3 18_3 18_3 0 0 0 0 0 0 ne2-3
3_nb2-3 2_3 10_3 3 3 3 3 3 3 3 3 0 0 0 0 0 0 0 0 0 0 0 0 0 0 ne2-3_ne9-10_se1
10_4_5_9_nb8_sb4-5_sb9-10 9 9 se4-5 8_nb4-5_nb6_nb7 8 8 ne6 6_sb6 6 10_6 0 0 0 0 0 0 0 0 0 ne7_se6 10_8_nb7 10_8 8 8 8 8 0 ne4-5_ne7_ne8
8_nb8 8 8 8 8 8 10_8 10_8 8 8 8 ne16-17-18-19_ne8_se9-10
12_15_nb11_nb15_sb12_sb16-17-18-19 12_15 12_15_18 12_15_18 0 17 0 0 0 0 0 0 0 0 0 0 ne11 11_sb11 0 0 0 0 0 0 0 0 0 0 0 0 0 se11_se12
nb12_nb13 18 18 0 0 ne13 nb14-20_sb13 13 0 0 0 0 0 0 0 0 0 0 0 0 0 ne14-20 14_sb14-20 20 20 0 0 0 0 17 ne12_ne15_se13_se14-20
15_nb15 15 15 15 0 0 0 0 0 0 0 0 0 0 17 0 0 0 0 0 0 0 0 0 0 ne15_se16-17-18-19
