#include <fstream>
#include <iostream>

int main() {

	//std::ifstream inf("Text.txt");	std::cin.rdbuf(inf.rdbuf());

	long long int A, B = 0;
	std::cin >> A >> B;
	int C = 1000000007;
	
	std::cout << ((A%C)*(B%C)) % C << std::endl;

	return 0;
}