Namjoon was the 43th customer to buy the book at the bookstore, and there were 10 people in front of Namjoon when Taehyung bought the book. In this order, in which position did Taehyung buy the book?
43 10 [OP_SUB] 1 [OP_SUB]
var_a = 43
var_b = 10
var_c = var_a - var_b
var_d = 1
var_e = var_c - var_d
print(int(var_e))