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// Permutation & Combination formula using return function
import java.util.*;
class returnprg2
{
    public static double fact(int x)
    {
        double f=1.0;
        for (int i=1;i< x;i++)
        {
            f=f*i;
        }
        return (f);
    }
    public static void main()
    {
        Scanner s=new Scanner(System.in);
        int n,r;
        System.out.println("enter the values respectively");
        n=s.nextInt();
        r=s.nextInt();
        System.out.println("Permuation="+(fact(n)/fact(n-r)));
        System.out.println("Combination="+(fact(n)/(fact(r)*fact(n-r))));
    }
}