24 is a result of subtracting 63 from a particular number by mistake when the original calculation was to subtract 36 from that particular number. Find the result of the original 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))