import java.io.*;
import java.util.*;

public class Main {
    static final int MOD = 1000000007;
    public static void main(String[] args) throws Exception {
        Scanner sc = new Scanner();
        long n = sc.nextLong();
        long m = sc.nextLong();
        long ans = (pow(2, m, MOD) - 1 + MOD) % MOD;
        ans *= pow(2, MOD - 2, MOD);
        ans %= MOD;
        System.out.println(ans);
    }
    
    static long pow(long x, long p, int mod) {
        if (p == 0) {
            return 1;
        } else if (p % 2 == 0) {
            return pow(x * x % mod, p / 2, mod);
        } else {
            return x * pow(x, p - 1, mod) % mod;
        }
    }
}
class Scanner {
    BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
    StringTokenizer st = new StringTokenizer("");
    
    public Scanner() throws Exception {
        
    }
    
    public int nextInt() throws Exception {
        return Integer.parseInt(next());
    }
    
    public long nextLong() throws Exception {
        return Long.parseLong(next());
    }
    
    public double nextDouble() throws Exception {
        return Double.parseDouble(next());
    }
    
    public String next() throws Exception {
        if (!st.hasMoreTokens()) {
            st = new StringTokenizer(br.readLine());
        }
        return st.nextToken();
    }
}