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()