#include
using namespace std;
int main()
{
cout <<"4,4"<<endl;cout <<"4,5"<<endl;cout <<"4,6"<<endl;cout <<"4,7"<<endl;cout <<"4,8"<<endl;cout <<"4,9"<<endl;cout <<"5,0"<<endl;cout <<"5,1"<<endl;cout <<"5,2"<<endl;cout <<"5,3"<<endl;cout <<"5,4"<<endl;cout <<"5,5"<<endl;cout <<"5,6"<<endl;cout <<"5,7"<<endl;cout <<"5,8"<<endl;cout <<"5,9"<<endl;cout <<"6,0"<<endl;cout <<"6,1"<<endl;cout <<"6,2"<<endl;cout <<"6,3"<<endl;cout <<"6,4"<<endl;<br>}