You need to find the sum of 9 and a certain number, but mistakenly calculated the difference of them and got 1 as the answer. If the number is less than 10, find the sum of 9 and the number.
9 1 [OP_SUB] 9 [OP_ADD]
var_a = 9
var_b = 1
var_c = var_a - var_b
var_d = 9
var_e = var_c + var_d
print(int(var_e))