C :

#include<stdio.h>
main()
{
	char ch;
	ch = getchar();
	if(ch >= 'A' && ch <= 'Z')
		ch = ch + 32;
	else if(ch >= 'a' && ch <= 'z')
		ch = ch - 32;
	printf("%c,%d\n",ch,ch);
	return 0;
}

C++ :

#include<bits/stdc++.h>
using namespace std;
char a;
int main()
{
	a=getchar();
	if(a>='a'&&a<='z')
	{
		cout<<char(a-32)<<",";
		cout<<int(char(a-32));
	}
	else if(a>='A'&&a<='Z')
	{
		cout<<char(a+32)<<",";
		cout<<int(char(a+32));
	}
	else cout<<int(a);
   return 0;
}