There are 45 apples. There are 21 fewer pears than apples. How many tangerines are there if there are 18 fewer pears than tangerines?
45 21 [OP_SUB] 18 [OP_ADD]
var_a = 45
var_b = 21
var_c = var_a - var_b
var_d = 18
var_e = var_c + var_d
print(int(var_e))