<span> Codeforces 1355 D. Game With Array</span>

 1 #include<bits/stdc++.h>
 2 #define ll long long
 3 using namespace std;
 4 
 5 int main()
 6 {
 7     ios::sync_with_stdio(false);
 8     cin.tie(0);
 9     cout.tie(0);
10     int n,m;
11     cin>>n>>m;
12     if(m/n>=2){
13         cout<<"YES"<<endl;
14         for(int i=0;i<n-1;i++) cout<<2<<' ';
15         cout<<m-(n-1)*2<<endl;
16         cout<<1<<endl;
17     }
18     else cout<<"NO"<<endl;
19     return 0;
20 }