x1 d_1_2
x2-xTol d_1_2
x2 d_2_3
x3-xTol d_2_3
x3 d_3_4
x4-xTol d_3_4
x4 d_4_5
x5-xTol d_4_5
x5 d_5_6
x6-xTol d_5_6
x6 d_6_7
x7-xTol d_6_7
x7 d_7_8
x8-xTol d_7_8
x8 d_8_9
x9-xTol d_8_9
x9 d_9_10
x10 d_9_10