When adding a four-digit number to a two-digit number, the 8 in the ones place of the four-digit number was mistaken for 5, and the tens and ones places of the two-digit number were swapped and the number was mistaken for 63. In these circumstances, the result of the calculation was 2708. Find the result of the correct calculation.
2708 8 5 [OP_SUB] [OP_ADD] 63 36 [OP_SUB] [OP_ADD]
var_a = 2708
var_b = 8
var_c = 5
var_d = var_b - var_c
var_e = var_a + var_d
var_f = 63
var_g = 36
var_h = var_f - var_g
var_i = var_e + var_h
print(int(var_i))