nb1 1 1 0 0 0 0 0 0 0 0 0 0 ne1
nb4_sb1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 ne4
nb4 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 ne4
nb4 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 ne4
nb4_nb5 0 0 0 0 0 0 0 0 0 0 0 ne5 nb2_nb3_sb5 0 0 0 5 5 0 0 0 0 0 0 0 0 0 0 0 0 0 ne2 2_sb2 0 0 0 0 2 ne3_se2 nb3 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 ne3_ne4_se5
nb4 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 ne4
nb4 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 ne4_se1
