## https://yukicoder.me/problems/no/1800

MOD = 10 ** 9 + 7

def main():
    N, M = map(int, input().split())

    a = pow(2, M, MOD)
    a -= 1
    a %= MOD

    a *= pow(2, MOD - 2, MOD)
    a %= MOD
    print(a)










if __name__ == "__main__":
    main()