def aa(a):
    res=[]
    for i in a:
        for j in range(len(res)):
            res.append(i-res[j]);res.append(res[j]-i)
        res.append(i)
    return set(res)

n,k=map(int,input().split())
a=list(map(int,input().split()))
b,c=a[:n//2],a[n//2:]
x,y=aa(b),aa(c)
ans="No"
for i in list(x):
    if i==k or k+i in y or -k+i in y or k-i in y:
        ans="Yes"
print(ans)