#include <bits/stdc++.h>
using namespace std;

#define popcount(n) (__builtin_popcountll((n)))
#define clz(n) (__builtin_clzll((n)))
#define ctz(n) (__builtin_ctzll((n)))
#define lg(n) (63 - __builtin_clzll((n)))
#define BIT(n, i) (((n) >> (i)) & 1ll)
#define MASK(i) (1ll << (i))
#define FLIP(n, i) ((n) ^ (1ll << (i)))
#define ON(n, i) ((n) | MASK(i))
#define OFF(n, i) ((n) & ~MASK(i))

#define Int __int128
#define fi first
#define se second

typedef long long ll;
typedef unsigned long long ull;
typedef long double ld;
typedef pair<int, int> pii;
typedef pair<long long, long long> pll;
typedef pair<long long, int> pli;
typedef pair<int, long long> pil;
typedef vector<pair<int, int>> vii;
typedef vector<pair<long long, long long>> vll;
typedef vector<pair<long long, int>> vli;
typedef vector<pair<int, long long>> vil;

template <class T1, class T2>
bool maximize(T1 &x, T2 y) {
    if (x < y) {
        x = y;
        return true;
    }
    return false;
}
template <class T1, class T2>
bool minimize(T1 &x, T2 y) {
    if (x > y) {
        x = y;
        return true;
    }
    return false;
}

template <class T>
void remove_duplicate(vector<T> &ve) {
    sort (ve.begin(), ve.end());
    ve.resize(unique(ve.begin(), ve.end()) - ve.begin());
}

mt19937 rng(chrono::high_resolution_clock::now().time_since_epoch().count());
template <class T> T random(T l, T r) {
    return uniform_int_distribution<T>(l, r)(rng);
}
template <class T> T random(T r) {
    return rng() % r;
}

const int N = 1e6 + 5;
const int MOD = 1e9 + 7;
const int inf = 1e9;
const ll INF = 1e18;

vector<string> states;

bool is960(string position) {
    vector<int> where(5, -1);
    for (int i = 0; i < 8; ++i) {
        if (position[i] == 'R') {
            if (where[0] == -1) where[0] = i;
            else where[1] = i;
        }
        if (position[i] == 'B') {
            if (where[2] == -1) where[2] = i;
            else where[3] = i;
        }
        if (position[i] == 'K') where[4] = i;
    }
    if (where[0] > where[4] || where[1] < where[4]) return false;
    if (where[2] % 2 == where[3] % 2) return false;
    return true;
}

void generate() {
    string position = "RRNNBBKQ"; states.clear();
    sort (position.begin(), position.end());
    do {
        if (is960(position)) states.emplace_back(position);
    } while (next_permutation(position.begin(), position.end()));
    remove_duplicate(states);
    cerr << "There are " << states.size() << " positions\n";
}

int count(const string &s, const string &t) {
    int ans = 0;
    for (int i = 0; i < 8; ++i) if (s[i] == t[i]) {
        ++ans;
    }
    return ans;
}

signed main() {
    ios_base::sync_with_stdio(false); cin.tie(NULL); cout.tie(NULL);

    generate();

    string input;
    while (cin >> input) {
        if (input == "END") break;
        int testId; cin >> testId;
        vector<string> candidates = states;
        while (true) {
            int mi = inf; string best;
            for (auto candidate : candidates) {
                int ma = -1;
                for (int correct = 0; correct <= 8; ++correct) {
                    int sz = 0;
                    for (auto other : candidates) if (count(candidate, other) == correct) {
                        ++sz;
                    }
                    maximize(ma, sz);
                }
                if (minimize(mi, ma)) best = candidate;
            }
            cout << best << endl;
            int correct; cin >> correct;
            if (correct == 8) break;
            vector<string> newCandidates;
            for (auto other : candidates) if (count(best, other) == correct) {
                newCandidates.emplace_back(other);
            }
            candidates = newCandidates;
        }
    }

    cerr << '\n'; return 0;
}