You need to multiply 23 by a certain number, but mistakenly subtracted a certain number from 23 and got 4. Find the result of the correct calculation.
23 23 4 [OP_SUB] [OP_MUL]
var_a = 23
var_b = 23
var_c = 4
var_d = var_b - var_c
var_e = var_a * var_d
print(int(var_e))