n,m,l = map(int,input().split())
M = 1005
dp = [0]*M
dp[l] = 1
A = list(map(int,input().split()))
for a in A:
    ndp = [0]*M
    for i in range(M):
        if dp[i] == 0:
            continue
        
        ndp[i] = 1
        ndp[(i+a)//2] = 1
    dp = ndp
print("Yes" if dp[m] else "No")