nn

#include <iostream>
#include <string>

using namespace std;

void fun(int num)
{
    switch (num)
    {
        case 7: cout << "AB+"; break;
        case 6: cout << "AB-"; break;
        case 5: cout << "A+"; break;
        case 4: cout << "A-"; break;
        case 3: cout << "B+"; break;
        case 2: cout << "B-"; break;
        case 1: cout << "0+"; break;
        case 0: cout << "0-"; break;
    }
}

int main()
{
    string blood;
    cin >> blood;
    int number, thirdbit;
    int limit=7;

    if(blood.length() == 2)
    {
        if(blood[0] == '0') number = 0;
        if(blood[0] == 'A') number = 1 << 2;
        if(blood[0] == 'B') number = 1 << 1;
        if(blood[1] == '+') number = number | 1;
    }
    if(blood.length() == 3 && (blood[2] == '+')) number = 7;
    if(blood.length() == 3 && (blood[2] == '-')) number = 6;

    for (int i=7 ; i >= number ; i--)
    {
        if((i >= number) && ((i >> 2) >= (number >> 2)))
        {
            fun(i);
        }
        if (i != number) cout << "\n";
    }

    return 0;
}