import java.util.Scanner;
public class Solution { public static void main(String[] args) { Scanner sc = new Scanner(System.in); int v = sc.nextInt(); int t = sc.nextInt(); int s = v * t; if (s > 0) { System.out.println(s % 109); } else if (s <= 0) { int a = 109 + (s % 109) % 109; if (a == 109) { System.out.println(0); } else { System.out.println(a); } } } }