N,M,L = map(int,input().split())
A = list(map(int,input().split()))
def color(a,b):
    return (a+b)//2

dp=[[0]*1001 for _ in range(N+1)]
dp[0][L]=1
for i in range(N):
    for j in range(1001):
        if dp[i][j]==1:
            dp[i+1][(j+A[i])//2]=1
            dp[i+1][j]=1
print('Yes' if dp[N][M] else 'No')