using namespace std;
bool hinl(double temp,bool cough)
{
	return temp >=37.5&&cough==1; 
}
int main()
{
	int n;
	cin>>n;
	int cnt=0;
	for(int i=1;i<=n;i++)
	{
		string name;
		double temp;
		bool cough;
		cin>>name>>temp>>cough;
		if(hinl(temp,cough)==true)
		{
			cout<<name<<endl;
			cnt++;
		}
	}
	cout<<cnt<<endl;
	return 0;
 }