#include "bits/stdc++.h"
#define in std::cin
#define out std::cout
#define rep(i,N) for(int i=0;i<N;++i)
typedef long long int LL;

LL A, B;

int main()
{
	in >> A >> B;
	A %= 1000000007, B %= 1000000007;
	out << A * B % 1000000007 << std::endl;
	return 0;
}