# import pypyjit # pypyjit.set_param('max_unroll_recursion=-1') import sys sys.setrecursionlimit(10**7) def input(): return sys.stdin.readline().rstrip() INF = 10**18 n, x, m = map(int, input().split()) a = list(map(int, input().split())) cnts = [0]*n for i in range(n): tmp = a[i] cnt = 0 while tmp >= x: tmp //= 2 cnt += 1 cnts[i] = cnt now = 0 for i in range(n-1, -1, -1): cnts[i] = max(0, cnts[i]-now) while cnts[i] > 0: if i > min(n-1, m-1): break now += 1 cnts[i] -= 1 m -= i if sum(cnts) == 0: print("Yes") else: print("No")