using System;

public class Program

{

    public static void Main()

    {

        int x  = find_max(4,1,3);

        Console.WriteLine(x);

    }

    public static int find_max(int a,int b, int c) {

        if(a >= b && a >= c) 

            return a;

        if(b >= a && b >= c) 

            return b;

        return c;

    }

}