#include<iostream.h>
#include<math.h>
#include<stdlib.h>


class Reading
{
public:
	int lat;
	float temp;
//all temperatures are init to -999= NO DATA
	Reading() {temp=-999;};
};


main()
{
	Reading north[91],south[91];
	float temp=0,totSouth=0, totNorth=0;
	int i=0, lat=0,total=0;

//assign values to latitude 
	for(;i<91;i++) north[i].lat=south[i].lat=i;
	
//Input values
	while(1)
	{	
		cout << "\nEnter Latitude (-90 to 90): ";
		cin >> i;
		cout << "Enter Temperature: ";
		if (i<0 && i>-91) {south[abs(i)].lat=i;cin >> south[abs(i)].temp;}
		else if (i>0 && i<91) {north[i].lat=i; cin >> north[i].temp;}
		else break;
		
	}

//Print values
	for(i=0;i<91;i++) 
	{
		cout << "\n" << "South Lat =" << i*-1 << "  Temperature =";
		if (south[i].temp==-999)
			cout << "NO DATA";
		else
			cout << south[i].temp;
			cout << " North Lat =" << i <<"       " << " Temperature=";
		if (north[i].temp==-999)
			 cout << "NO DATA";
		else 
			cout << north[i].temp;
	}

	for(i=0;i<91;i++)
	{
		if (int(south[i].temp)!=-999 && int(north[i].temp)!=-999)
		{
			totSouth+=south[i].temp;
			totNorth+=north[i].temp;
			total++;
		}

	}

	if (total) {totNorth=totNorth/total;totSouth=totSouth/total;}

	cout << "\n" << "Average North Temp=" << totNorth;
	cout << "\n" << "Average South Temp=" << totSouth;
	if (totNorth>totSouth) cout << "\nNorth Is warmer \n";
	else if (totNorth<totSouth) cout << "\nSouth is warmer.\n";
	else cout << "\nBoth have same temperatures\n";

	return 0;
}