#include <iostream>
using namespace std;



string arr[1000],
       c1  = "A",
       c2  = "B",
       c3  = "C";

int    a        ,
       r1       ,
       r2       ,
       r3       ,
       resu     ;

/////////////////////////////////
int main()                    //
{
   cin >> a;

   for(int y = 0; y < a; y++)
   {
       cin >> arr[y];

            for(int i = 0; i < a; i++)
            {
                    if(arr[i] == c1) r1 += 1;
                    if(arr[i] == c2) r2 += 1;
                    if(arr[i] == c3) r3 += 1;
                    cout << r1 << r2 << r3;
           }



                    if(r2 - r1 > 0) resu = r2 - r1;
                    else
                    {
                        cout <<  "NO";
                        continue;
                    }

                    if(resu - r3 == 0)
                    {
                        cout << "YES";
                        continue;
                    }

                    else cout <<  "NO";

   }
}