N,M,L=map(int,input().split())
Al=list(map(int,input().split()))
dp=set([L])
for i in range(N):
    next_dp=set()
    for a in dp:
        next_dp.add(a)
        c=(a+Al[i])//2
        if c<=M:
            next_dp.add(c)
    dp=next_dp
print("Yes" if M in dp else "No")