#include <cstdio>
using namespace std;

int main(){
    long long A, B, modedA, modedB, ans, modedAns;

    scanf("%lld%lld",&A,&B);

    modedA = A % 1000000007;
    modedB = B % 1000000007;

    ans = modedA * modedB;

    modedAns = ans % 1000000007;

    printf("%lld\n",modedAns);

    return 0;
}