A cube with one edge that is 15 centimeters (cm) long is displayed in the exhibition hall. What is the sum of the lengths of all the edges of this 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))