#include<bits/stdc++.h>
using namespace std;
int main() {
bool answer = false;
int N,X;
cin >> N >> X;
vector<int>A(N);
for(int i=0; i<N; i++){
cin >> A[i];
}
for(int i=0; i<N; i++){
if(A[i]==X){
cout << "Yes";
answer = true;
break;
}
}
if(!answer){
cout << "No";
}
// your code goes here
return 0;
}
I2luY2x1ZGU8Yml0cy9zdGRjKysuaD4KdXNpbmcgbmFtZXNwYWNlIHN0ZDsKCmludCBtYWluKCkgewoJYm9vbCBhbnN3ZXIgPSBmYWxzZTsKCWludCBOLFg7CgljaW4gPj4gTiA+PiBYOwoJdmVjdG9yPGludD5BKE4pOwoJZm9yKGludCBpPTA7IGk8TjsgaSsrKXsKCQljaW4gPj4gQVtpXTsKCX0KCQoJZm9yKGludCBpPTA7IGk8TjsgaSsrKXsKCQlpZihBW2ldPT1YKXsKCQkJY291dCA8PCAiWWVzIjsKCQkJYW5zd2VyID0gdHJ1ZTsKCQkJYnJlYWs7CgkJfQoJfQoJCglpZighYW5zd2VyKXsKCQljb3V0IDw8ICJObyI7Cgl9CgkvLyB5b3VyIGNvZGUgZ29lcyBoZXJlCglyZXR1cm4gMDsKfQ==