#include <iostream>
#include <vector>
#include <string>
using namespace std;
//変数デバッグ
#define DEB(variable) cout << #variable << '=' << variable << endl

//for簡易表記(引数ミス防止)
#define FOR(inc, a, b) for (int inc = (a); (inc) < (b); (inc)++) //incをaにし、b-a回(iがb未満の間)処理を行う
#define REP(inc,b) FOR(inc,0,n)

int main(){

    unsigned long long int a, b;
    cin >> a >> b;

    a %= 1000000007;
    b %= 1000000007;

    cout << (a * b)%1000000007 << endl;

    return 0;
}