Preludes Solution:

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

int main(){
    // #ifndef TESTING
    // freopen("input.txt", "r", stdin);
    // freopen("output.txt", "w", stdout);
    // #endif

    map<string, string> notes = {{"A#", "Bb"}, {"C#", "Db"}, {"D#", "Eb"}, {"F#", "Gb"}, {"G#", "Ab"}};
    for(auto i:notes){
        notes.insert({i.second, i.first});
    }

    int caseNumber = 0;
    string note, tone;
    while(cin >> note >> tone){
        auto it = notes.find(note);
        if(it == notes.end()){
            cout << "Case " << ++caseNumber << ": UNIQUE" << endl;
        } else {
            cout << "Case " << ++caseNumber << ": " << (*it).second << " " << tone << endl;
        }
    }

    return 0;
}