There are hexagonal prisms and quadrangular pyramids whose all edges are the same length. If the sum of the lengths of all the edges of the hexagonal prism is 81 centimeters (cm), find the sum of the lengths of all the edges of the pyramid.
81 6 3 [OP_MUL] [OP_DIV] 4 2 [OP_MUL] [OP_MUL]
var_a = 81
var_b = 6
var_c = 3
var_d = var_b * var_c
var_e = var_a / var_d
var_f = 4
var_g = 2
var_h = var_f * var_g
var_i = var_e * var_h
print(int(var_i))