WhereIsHeroFrom: Zty, what are you doing ?
Zty: I want to calculate N!..
WhereIsHeroFrom: So easy! How big N is ?
Zty: 1 <=N <=1000000000000000000000000000000000000000000000…
WhereIsHeroFrom: Oh! You must be crazy! Are you Fa Shao?
Zty: No. I haven’s finished my saying. I just said I want to calculate N! mod 2009

Hint : 0! = 1, N! = N*(N-1)!
Input
Each line will contain one integer N(0 <= N<=10^9). Process to end of file.
Output
For each case, output N! mod 2009
Sample Input
4
5
Sample Output
24
120

import java.util.Scanner;public class Main {static int ppp[]=new int [3000];static void init() {ppp[0]=ppp[1]=1;for(int i=1;i<=2009;i++) ppp[i]=(ppp[i-1]*i)%2009;}public static void main(String[] args) {init();int l;Scanner in = new Scanner(System.in);while(in.hasNext()){l=in.nextInt();if(l>=2009)System.out.println(0);elseSystem.out.println( ppp[l]);}} }

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