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

T=[0]*N
for i in range(N):
    a=A[i]
    while X<=a:
        T[i]+=1
        a//=2

T.reverse()
for i in range(N):
    if i>=1:
        T[i]=max(T[i],T[i-1])

print("Yes" if sum(T)<=M else "No")