import java.util.*;
import java.lang.*;
import java.io.*;

class Ideone
{
    public static int fibo(int n) {
        if (n == 1 || n == 2) {
            return 1;
        } else {
            return fibo(n - 1) + fibo(n - 2);
        }
    }

    public static void main(String[] args) throws java.lang.Exception
    {
        System.out.println(fibo(1));
        System.out.println(fibo(5));
        System.out.println(fibo(10));
    }
}