#include <iostream>
#include <vector>
#include <algorithm>

using namespace std;


int main() {
  std::cin.tie(0);
  std::ios::sync_with_stdio(false);

  int N = 1000000007;
  long long A, B;
  cin >> A >> B;

  long long C = A*B;
  cout << C % N << endl;

  return 0;
}