#include <iostream>
using namespace std;

void main()
{
	int ids[50];
	float gpas[50];

	for(int i = 0;i < 50; i++)
	{
		cin >> ids[i];
		cin >> gpas[i];
	}

	for(int i = 0;i < 50; i++)
	{
		cout << ids[i] << " ";
		cout << gpas[i] << endl;
	}

	for(int i = 0;i < 50; i++)
	{
		if( gpas[i] >=3)
		{
			cout << ids[i] << endl;
		}
	}

	////pointer - variable that holds an address
	//int grades[4] = {1,2,3,4}; 
	////null terminator
	////c-style string - an array of char with a null terminator
	////char name[5] = {'D','a','n','a','\0'};
	//char name[50] = "Dana";
	////"a", 'a'

	//cout << grades << endl;
	//cout << grades + 1 << endl;
	//cout << grades + 2 << endl;
	//for(int i= 0; i < 4;i++)
	//{
	//	//cout << grades[i] << " ";
	//	//pointer arithmetic
	//	cout << *(grades + i) << endl;
	//}
	//cout << name << endl;
	//cin >> name;
	//cout << name << endl;

	////declare a pointer
	//int x = 4;
	////& is the "address of" operator
	////int* p = &x;
	//int * p = grades;
	//cout << p << endl;
	////walking the pointer
	//cout << *p << endl;
	//p++;
	//cout << *p << endl;
	//p++;
	//cout << *p << endl;
}