1042 N!(java)

import java.math.BigInteger;import java.util.Scanner;public class Main {public static void main(String[] args){Scanner sc=new Scanner(System.in);int n;BigInteger temp;while(sc.hasNext()){n=sc.nextInt();BigInteger r=new BigInteger("1");for(Integer i=1;i<=n;i++){temp=new BigInteger(i.toString());r=r.multiply(temp);}System.out.println(r);}}}