using System;

public class Program

{

    public void Main()

    {

        proc1(5,9);

        proc2(9,10);

        proc3(6,5);

        proc4(50,5);

    }

    public void proc1(int a,int b)

    { 

        int s;

        s=a+b;

        Console.WriteLine(s);

    }

    public void proc2(int x,int y)

    {

        int t;

        t=x-y;

        Console.WriteLine(t);

    }

    public void proc3(int k,int r)

    {

        int f;

        f=k*r;

        Console.WriteLine(f);

    }

    public void proc4(int d,int m)

    {

        int h;

        h=d/m;

        Console.WriteLine(h);

    }

}