#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
#define rp(i,a,b) for(int i=a;i<b;i++)
vector<string> resp;
bool veri(string &t) {
int te = -1;
rp(i, 0, 8){
if(te >= 0 && t[i] == 'B' && (i%2) == (te%2)) return false;
else if(t[i] == 'B') te = i;
}
rp(i, 0, 8){
if(t[i] == 'K'){
bool flag1 = true, flag2 = true;
rp(j, 0, i) if(t[j] == 'R') flag1 = false;
rp(j, i, 8) if(t[j] == 'R') flag2 = false;
if(flag1 || flag2) return false;
break;
}
}
return true;
}
void solvetask() {
int n;
cin >> n;
//for(auto original: resp){
vector<string> currentState = resp;
string best;
for(int turn = 0; turn < 7; turn++) {
if(turn == 6) {
cout << original << " " << currentState.size() << "\n";
break;
}
int mx = 1e9;
string chute;
for (auto &comp : currentState) {
vector<int> bins(9, 0);
for (auto &candidate : currentState) {
int matches = 0;
rp(k, 0, 8) if (comp[k] == candidate[k]) matches++;
bins[matches]++;
}
int melhorbin = *max_element(bins.begin(), bins.end());
if (melhorbin < mx) {
mx = melhorbin;
chute = comp;
}
}
if(turn == 0) chute = "RBBNNQKR";
// if(turn == 5) chute = currentState[rand()%(currentState.size())];
cout << chute << endl;
fflush(stdout);
int iguais=0;
cin >> iguais;
// rp(k, 0, 8) if (chute[k] == original[k]) iguais++;
if (iguais == 8) break;
vector<string> newState;
for (auto &comp : currentState) {
int matches = 0;
rp(k, 0, 8) if (comp[k] == chute[k]) matches++;
if (matches == iguais) newState.push_back(comp);
}
currentState = newState;
}
//}
}
void pre_cal() {
string temp = "BBQKNNRR";
sort(temp.begin(), temp.end());
while(next_permutation(temp.begin(), temp.end())) if(veri(temp)) resp.push_back(temp);
}
int main() {
srand(time(0));
cin.tie(0)->sync_with_stdio(0);
string t;
pre_cal();
while (true) {
cin >> t;
if (t == "END") return 0;
solvetask();
}
}