1pub fn Add(x: i64, y:i64)-> i64{
2 let z=x+y;
3 z
4
5}
6pub fn Mul(x: i64, y:i64)->i64{
7 let z=x*y;
8 z
9}
10pub fn Div(x: i64, y:i64)->i64{
11 let z=x/y;
12 z
13}
14pub fn Sub(x: i64, y:i64)->i64{
15 let z=x-y;
16 z
17}
18pub fn Mod(x: i64, y:i64)->i64{
19 let z=x%y;
20 z
21}