BST
n0_n0
k6_j5
j17_k34
k6x5_j5y6
j17y2_k34x2
j3_k1
j34k6_k17j5
j17k2_j2k34
n26y5_n25x6
k26x5_j25y6
j6_k5
j36_k15
k56_j56
j136y7_k135x4
k56x4_j56y7
n167x4_n345y7
j3k5x4_k1j6y7
j167y2_k345x2
j2_k2
j236_k125
j26_k25
j23_k12
j23k6_k12j5
j2y3_k2x1
j2k6_k2j5
j26y3_k25x1
j2k56_k2j56
j246y3_k257x1
j2k56x4_k2j56y7
k157x6_j346y5
j26y34_k25x17
j2k6x5_k2j5y6
j2k6y3_k2j5x1
k1j6_j3k5
n345_n167
j3k6_k1j5
n45y2_n67x2
j3k56x4_k1j56y7
k2j6_j2k5
n5y2_n6x2
k26_j25
k256_j256
