n,m,l = map(int,input().split())
a = list(map(int,input().split()))
dp = [0] * 1001
dp[l] = 1
for i in range(n):
	ndp = dp[::]
	for j in range(1001):
		if dp[j] == 1:
			ndp[(j + a[i]) // 2] = 1
	dp = ndp

if dp[m]:
	print("Yes")
else:
	print("No")