N, M, L = map(int, input().split())
A = list(map(int, input().split()))
dp = [False]*1010
dp[L] = True

for i in range(N):
    ndp = [False]*1010
    
    for j in range(1010):
        if dp[j]:
            ndp[j] = True
            k = (j+A[i])//2
            ndp[k] = True
    
    dp = ndp

if dp[M]:
    print('Yes')
else:
    print('No')