The Go stones are arranged regulary without gaps to form a square. If the number of stones on one side is 6, what is the number of Go stones are placed around the perimeter of the square?
6 4 [OP_MUL] 4 [OP_SUB]
var_a = 6
var_b = 4
var_c = var_a * var_b
var_d = 4
var_e = var_c - var_d
print(int(var_e))