#include<iostream> using namespace std; int n,D,G,Z; char a,b; int main(){ cin>>n; while(n--){ cin>>a>>b; if(a=='D') D++; if(a=='G') G++; if(a=='Z') Z++; if(b=='D') D--; if(b=='G') G--; if(b=='Z') Z--; } cout<<"D "<<D<<endl; cout<<"G "<<G<<endl; cout<<"Z "<<Z<<endl; return 0; }