While Jimin tried to subtract a number from 34, he subtracted a number from 20 by mistake and got 60. Write down the result of the correct calculation.
34 20 60 [OP_SUB] [OP_SUB]
var_a = 34
var_b = 20
var_c = 60
var_d = var_b - var_c
var_e = var_a - var_d
print(int(var_e))