import java.util.*;

public class Main {
    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        long a = sc.nextLong();
        long b = sc.nextLong();
        long mod = 1000000007L;
        long ans = (a%mod) * (b%mod) % mod;
        System.out.println(ans);
    }
}