I was to subtract 36 from a number, but mistakenly subtracted 63, and got 24 as a result. Find out the right answer to the calculation.
24 63 [OP_ADD] 36 [OP_SUB]
var_a = 24
var_b = 63
var_c = var_a + var_b
var_d = 36
var_e = var_c - var_d
print(int(var_e))