#include<bits/stdc++.h>
#define ll long long
#define mod 1000000007
using namespace std;
int n,k;
ll ksm(ll a,int b){
	ll ans = 1;
	while(b){
		if(b & 1) ans = ans * a % mod;
		a = a * a % mod;
		b /= 2;
	}
	return ans;
}
int main(){
	scanf("%d%d",&n,&k);
	printf("%lld",ksm((ll)(k + 1),n));
	return 0;
}