If you made a square by placing 10 square tiles on each vertical and horizontal line without gaps, how many tiles are placed at the perimeter?
10 4 [OP_MUL] 4 [OP_SUB]
var_a = 10
var_b = 4
var_c = var_a * var_b
var_d = 4
var_e = var_c - var_d
print(int(var_e))