#include <bits/stdc++.h>
using namespace std;
using ull = unsigned long long;
const ull MOD = 1000000007;

void solve() {
  ull a, b, ans;
  cin >> a >> b;
  a %= MOD;
  b %= MOD;
  ans = a * b % MOD;
  cout << ans << endl;
}

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