cnt = 0
N, X, M = map(int, input().split())
A = list(map(int, input().split()))
cnt = 0
mp = 0
for i in range(N - 1, -1, -1):
    A[i] = A[i] // (1 << cnt)
    while A[i] > X:
        mp += i + 1
        A[i] = A[i] // 2
        cnt += 1

if mp <= M:
    print("Yes")
else:
    print("No")