1package main
 2
 3add :: proc(a, b: int) -> int {
 4	return a + b
 5}
 6
 7subtract :: proc(a, b: int) -> int {
 8	return a - b
 9}
10
11multiply :: proc(a, b: int) -> int {
12	return a * b
13}
14
15divide :: proc(a, b: int) -> int {
16	return a / b
17}