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

    two = 0
    while A:
        for _ in range(two):
            A[-1] //= 2

        while A[-1] >= X:
            two += 1
            M -= len(A)
            A[-1] //= 2

        if M < 0:
            return False

        A.pop()
    return True


if main():
    print("Yes")
else:
    print("No")