import copy

def main():
    N,K = map(int,input().split())
    A = list(map(int,input().split()))
    s = set([])
    for a in A:
        pres = copy.copy(s)
        for x in pres:
            s.add(x-a)
            s.add(a-x)
        s.add(a)
        if K in s:
            print("Yes");exit()
    print("No")


if __name__ == '__main__':
    main()