BigInteger

gistfile1.txt

import java.math.BigInteger;
import java.util.Scanner;


class Result {

    /*
     * Complete the 'extraLongFactorials' function below.
     *
     * The function accepts INTEGER n as parameter.
     */

    public static void extraLongFactorials(int n) {
        BigInteger factorial = BigInteger.ONE;
        while (n>0){
            factorial = factorial.multiply(BigInteger.valueOf(n));
            n--;
        }
        System.out.println(factorial);
    }


}

public class NTHFactorial {
        public static void main(String[] args)  {
            Scanner scanner = new Scanner(System.in);
            int n = scanner.nextInt();
            scanner.close();
            Result.extraLongFactorials(n);

        }
}