#include<iostream>
using namespace std;

int fact(unsigned int n){
    if(n==0){
        return 1;
    }
    if(n==1){
        return 1;
    }
    return fact(n-1) * n;
}

int combination(int n, int r){
    return (fact(n) / (fact(r) * fact(n-r) ) );
}

int permutation(int n, int r){
    return (fact(n) / (fact(n-r)));
}

int main(){
    int n, r;
    cout << "Enter the value of n = ";
    cin >> n;
    cout << "Enter the value of r = ";
    cin >> r;
    cout << "Combination = " << combination(n, r) << endl;
    cout << "Permutation = " << permutation(n, r) << endl;
    return 0;
}