mod = 998244353


def main():
    import sys
    input = sys.stdin.readline

    N, X, M = map(int, input().split())
    A = list(map(int, input().split()))

    cnt = 0
    for i in range(N - 1, -1, -1):
        while (A[i] >> cnt) > X:
            cnt += 1
            A[i] >>= 1
            M -= i + 1
    if M >= 0:
        print("Yes")
    else:
        print("No")


if __name__ == '__main__':
    main()