import java.util.*;
import java.util.stream.Stream;
import java.time.*;
import java.time.format.*;

public class No666 {
    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
		Long a = sc.nextLong();
        Long b = sc.nextLong();
        System.out.println((a * b) % 1000000007);
	}
}