#include <bits/stdc++.h>
#define int long long
#define mod 1000000007
using namespace std;
int n, k;

int ksm(int a,int b)
{
	int res = 1;
	while(b)
	{
		if(b & 1) res = res * a % mod;
		a = a * a % mod;b >>= 1;
	}
	return res;
}

signed main()
{
	cin >> n >> k;
	cout << ksm(k + 1,n) << endl;
}