#include <iostream>

using namespace std;

unsigned int Factorial(unsigned int n);

int main() {
    for( unsigned int i = 0; i < 10; ++i) {
        cout << "factorial(" << i << ") = " << Factorial(i) << endl;
    }

    return 0;
}

unsigned int Factorial(unsigned int n){
    unsigned int answer = 1;
    if (n > 1) {
       answer = n * Factorial(n-1);
    }

    return answer;
}