using System public class Frog public static int Fib int int resault i

using System;

public class Frog
{
    public static int Fib(int n)
    {
        int resault = 0;
        if (n == 0)
            return 0;
        if (n == 1) 
            return 1;
        if (n > 1)
            return Fib(n - 1) + Fib(n - 2);
        return resault;
    }
    public static int NumberOfWays(int n)
    {

        return Fib(n+1);
    }

    public static void Main(String[] args)
    {
        Console.WriteLine(NumberOfWays(3));
    }
}