#include <iostream>
#include <list>
#include <string>
#include <stdint.h>
using namespace std;
using uint = unsigned int;
using int64 = int64_t;
using uint64 = uint64_t;

int main()
{

  uint64 A;
  uint64 B;
  cin >> A >> B;
  cout << ( A * B ) % 1000000007 << "\n";
  
}