Adding 34 to a certain number and subtracting 53 results in 28. Find the certain number.
28 53 [OP_ADD] 34 [OP_SUB]
var_a = 28
var_b = 53
var_c = var_a + var_b
var_d = 34
var_e = var_c - var_d
print(int(var_e))