nb16_nb17_nb18-19_nb20-25-26_nb22_sb21 0 21_22_se21 nb21 0 0 26 0 18 18 18 18 0 0 0 0 0 19 19 19 20_ne20-25-26_ne21 20_sb20-25-26 20_25 0 0 0 0 26 ne18-19_se20-25-26
18_sb18-19 18 18 0 19 19 ne17_se18-19 sb17 0 0 0 0 0 0 17 0 0 0 0 0 0 0 0 ne16_se17
nb14_nb15-23-24_sb16 24 0 0 0 0 0 0 0 0 0 ne14 sb14 0 14_22 0 0 15_ne15-23-24_se14 15_sb13_sb15-23-24 13_15_23_se13 nb11_nb12_nb13 0 0 ne11 sb11 11 11 11 24_ne12_se11 nb12 0 0 0 0 0 ne12_ne13_ne22_se15-23-24_se16
nb8_nb9-10_sb22 22 0 0 0 0 0 0 0 10 ne8 sb8 22_8 22_8 10 10 0 0 0 0 ne9-10_se8
5_nb6-7_sb4_sb5_sb9-10 4_5_se4 nb4 0 6 6 0 0 0 10 0 0 7 ne4_se5 22_7_9_nb5_sb3 22_3_9_se3 nb3 0 0 0 0 0 0 0 0 0 0 0 0 ne3_ne5_ne6-7
6_nb1_nb2_sb6-7 6 0 0 0 0 0 0 0 7 0 0 0 0 ne2 2_22_9_sb2 0 0 0 0 0 22_9 22_7_9 0 0 0 0 0 0 0 0 0 0 ne1_se2
sb1 0 7 0 1 1 se1_se22_se6-7_se9-10
