N,M,X = map(int,input().split())
A = list(map(int,input().split()))
cnt = 0
for i in reversed(range(N)):
    a = A[i]
    i+=1
    while a>>cnt >= X and M>=0:
        cnt+=1
        M-=i
    if M<0:
        print('No')
        exit()
print('Yes')