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(1, n+1):
    for j in range(1001):
        if dp[i-1][j] == 1:
            dp[i][(j + a[i-1]) // 2] = 1
            dp[i][j] = 1

print("Yes" if dp[-1][m] else "No")