#include<bits/stdc++.h>
using namespace std;
#define ll long long
#define ld long double
#define For(i,x,y) for(ll i = (x);i <= (y);++i)
#define FOr(i,x,y) for(ll i = (x);i >= (y);--i)
#define fi first
#define se second
#define pa pair<ll,ll>
#define mk make_pair
#define pb push_back
#define clr(a,b) memset(a,b,sizeof(a))
#define cpy(a,b) memcpy(a,b,sizeof(b))
#define y1 y11111111111111111111
#define debug puts("@@@@@@@@@@@@@@@@@@@@")
#define NO puts("NO")
#define YES puts("YES")
#define Yes puts("Yes")
#define No puts("No")
inline ll read()
{
	ll x = 0,f = 1;char ch = getchar();
	while(ch < '0' || ch > '9'){if(ch == '-')f = -1;ch = getchar();}
	while(ch >= '0' && ch <= '9'){x = x*10+ch-'0';ch = getchar();}
	return x*f;
}
char s[999];
int main()
{
	while (scanf("%s",s)!=EOF)
	{
		if (s[1]=='s') puts("NO"),fflush(stdout);
	}
}