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

#dp[i][j] = i番目まで見てjが作れるか
dp = [[0]*1001 for i in range(N+1)]
dp[0][L] = 1
for i in range(N):
    for j in range(1001):
        if dp[i][j]:
            dp[i+1][j] = 1
            dp[i+1][(j+A[i])//2] = 1
    #print(dp[i+1])

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