#include <bits/stdc++.h>
using namespace std;

typedef long long ll;
#define endl '\n'

int main() {
    ios_base::sync_with_stdio(0); cin.tie(NULL); cout.tie(NULL);

    ll n, m;
    cin >> n >> m;

    ll x = 1, a = 2;;
    for(int i = 1; i < m; i++) {
        x+=a;
        if(x>=1000000007) x%=1000000007;
        a*=2;
    }

    ll ans = 1;
    while(n>0) {
        if(n&1) {
            ans*=x;
            x*=x;
            if(x>=1000000007) x%=1000000007;
        }
        n>>=1;
    }
    cout << ans;

    return 0;
}
/*
6:6+15+20+15+6+1=63 (31+16*2)
5:5+10+10+5+1=31 (15+8*2)
4:4+6+4+1=15 (7+4*2)
3:3+3+1=7 (3+2*2)
2:2+1=3
*/