#include<iostream>
using namespace std;
int main()
{
    long long b,n,t,p,samia=0,rafi=0,i;
    char a;
        cin>>n;
        for(i=0; i<n; i++)
        {
         cin>>a;
         if(a=='A')
         {
            samia++;
         }
         if(a=='D')
         {
            rafi++;
         }
        }
 
        if(samia>rafi)
        {
         cout<<"Anton"<<endl;
        }
        if(rafi>samia)
        {
        cout<<"Danik"<<endl;
        }
        if(rafi==samia)
        {
        cout<<"Friendship"<<endl;
        }
 
 
    return 0;
}