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

DP = [[False for _ in range(1001)] for _ in range(n + 1)]
DP[0][l] = True
for i in range(n):
    a = A[i]
    for j in range(1001):
        if DP[i][j]:
            DP[i + 1][j] = True
            DP[i + 1][(j + a) // 2] = True
if DP[n][m]:
    print("Yes")
else:
    print("No")