There are planks that are 36 centimeters (cm), 42 centimeters (cm), and 48 centimeters (cm) respectively. After cutting out 1/6 of this plank while trimming it, I overlapped and glued certain parts together, and the total length is 97 centimeters (cm). If all overlapping parts are the same length, find how many centimeters (cm) is the overlapping part.
36 42 [OP_ADD] 48 [OP_ADD] 1 1/6 [OP_SUB] [OP_MUL] 97 [OP_SUB] 3 1 [OP_SUB] [OP_DIV]
var_a = 36
var_b = 42
var_c = var_a + var_b
var_d = 48
var_e = var_c + var_d
var_f = 1
var_g = 0.16666666666666666
var_h = var_f - var_g
var_i = var_e * var_h
var_j = 97
var_k = var_i - var_j
var_l = 3
var_m = 1
var_n = var_l - var_m
var_o = var_k / var_n
print(int(var_o))