#include<bits/stdc++.h> #define int long long #define mod 1000000007 #define inf 0x7f7f7f7f using namespace std; inline int read(){ int x=0,f=0;char c=getchar(); while(!isdigit(c))f|=(!(c^'-')),c=getchar(); while(isdigit(c))x=(x<<1)+(x<<3)+(c^48),c=getchar(); return f?-x:x; } signed main(){ puts("NO"); return 0; }