#include using namespace std; typedef long long ll; template bool chmin(T1 &a,T2 b){if(a<=b)return 0; a=b; return 1;} template bool chmax(T1 &a,T2 b){if(a>=b)return 0; a=b; return 1;} int dx[4]={0,1,-1,0}; int dy[4]={1,0,0,-1}; signed main(){ ios::sync_with_stdio(false); cin.tie(0); cout << fixed << setprecision(20); int n,z; cin>>n>>z; if(z == 1){ cout << "No\n"; return 0; } ll y = z; for(int i=1;i= 20){ cout << "NO\n"; return 0; } if(n == 1){ cout << "Yes\n"; return 0; } bool pos = 1; vector st; for(ll i=1;i<100001;i++){ ll now = 1; bool ok = false; for(int j=0;j 1e6)ok = 1; } if(ok)break; st.push_back(now); } for(auto i:st){ for(auto j:st){ if(i+j == y){ cout << "Yes\n"; return 0; } } } cout << "No\n"; }