While Yoongi was subtracting the four-digit number from the two-digit number, he mistook the one-digit number 9 for the four-digit number as 2, and then changed the ones-digit number and the tens-digit number for the two-digit number to get 23. From this, Yoongi got -1299, what is the four-digit number?
23 1299 [OP_SUB] 2 9 [OP_SUB] [OP_SUB]
var_a = 23
var_b = 1299
var_c = var_a - var_b
var_d = 2
var_e = 9
var_f = var_d - var_e
var_g = var_c - var_f
print(int(var_g))