Program that displays alphabets in upper case and lower case

#include "stdafx.h"
#include "conio.h"
#include "iostream"
#include "stdio.h"

using namespace std;

int _tmain(int argc, _TCHAR* argv[])
{
cout<<endl<<"\t \t";
for(int a=65;a<=90;a++)
cout<<(char)a;
cout<<endl<<endl<<"\t \t";
for(int b=97;b<=122;b++)
cout<<(char)b;
getch();
}