#include<stdio.h>
#include<stdlib.h> //·¥´ý
#include<string>
#include<iostream>
using namespace std; //
char in[100], out[100]; //ÆÄÀÏ ÀÔÃâ·ÂÀ» À§Çؼ­

int main(){
    int n, a=0, b=0, i;
    for(int I = 1; I<=20; I++){
        n = I%10+1;
		a = 0;
		b = 0;
		string s;
		for(i=0;i<n;i++){
			char cc;
			cc = rand()%2+'0';
			s = s + cc;	
		} 
		//scanf("%d", &n);
        //scanf("%s", c);
        sprintf(in,".%d.in",I);
        freopen(in,"w",stdout);
        cout << n << "\n" << s;
        for(i=0;i<n;i++){
            if(s[i]=='0') a++;
            else b++;
        }
        sprintf(out,".%d.out",I);
        freopen(out,"w",stdout);
        if(a>1) printf("NO\n");
        else if(a+b>8) printf("NO\n");
        else printf("YES\n");
    }
}