n, m, l = map(int, input().split())
a = list(map(int, input().split()))
dp = [[0] * (1001) for _ in range(n + 1)]
dp[0][l] = 1
for i in range(n):
    for j in range(1001):
        dp[i + 1][(j + a[i]) // 2] |= dp[i][j]
        dp[i + 1][j] |= dp[i][j]
if dp[n][m]:
    print('Yes')
else:
    print('No')