Given a cube with an edge length of 15 centimeters (cm), find the sum of the lengths of all edges of the cube.
15 4 3 [OP_MUL] [OP_MUL]
var_a = 15
var_b = 4
var_c = 3
var_d = var_b * var_c
var_e = var_a * var_d
print(int(var_e))