#include <iostream>
using namespace std;
string s;
int cnt1, cnt2;
int main()
{
    cin >> s;
    for (int i = 0; i < s.size(); i++)
    {
        if (s[i - 1] == '|' || (!i))
        {
            if (s[i] == 'A' || s[i] == 'D' || s[i] == 'E')cnt1++;
            else cnt2++;
        }
    }
    if (cnt1 > cnt2)cout << "A-dur";
    else if (cnt1 < cnt2)cout << "C-dur";
    else
    {
        if (s[s.size() - 1] == 'A')cout << "A-dur";
        else cout << "C-dur";
    }
    return 0;
}