n, m, l = map(int, input().split())
A = list(map(int, input().split()))

prev_dp = [False] * 1001
prev_dp[l] = True

for a in A:
    curr_dp = [False] * 1001
    for c_prev in range(1001):
        if prev_dp[c_prev]:
            # 不混合的情况
            curr_dp[c_prev] = True
            # 混合的情况
            new_c = (c_prev + a) // 2
            curr_dp[new_c] = True
    prev_dp = curr_dp[:]

print("Yes" if prev_dp[m] else "No")