// editor3
#include <iostream>
#include<string>
using namespace std;
void display (string name,int grade){
    if(grade<1||grade>12)
    cout<<"Invalid input"<<endl;
    else 
    cout<<"student:"<< name <<",grade:"grade<<endl;
}
void display (string name,string subject){
    cout<<"Teacher:"<< name <<",subject:"<<subject<<endl;
}
int main (){
    int N
    cin>>N;
    if (N<1||N>10){
        cout<<"Invalid input";
        return 0;
    }
    for(int i =0; i<N; i++)
    {
        string name ;
        int grade;
        cin>>name>>grade;
        display(name,grade);
    }
    else if (type =="Teacher"){
        string name,subject;
        cin>>name>>subject;
        display(name,subject);
    }
    else{
        cout<<"Invalid input"<<endl;
    }
}
return 0;
}