#include <bits/stdc++.h>
using namespace std;
                                                                                   

int main(){
                                                                     

    long long a, b;

    long long k;

    
    cin >> a >> b;


    k = ( a % 1000000007 ) * ( b % 1000000007 );

    k %= 1000000007;


    cout << k << endl;


    return 0;

    }