WRITE A C++ PROGRAM TO CONVERT HEX TO ASCII STRING

#include <iostream>
#include <fstream>
#include <string>
#include <sstream>
using namespace std;


int main () 
{

 string Str;
  cout << "Enter A Hex Value eg.(0x4D) To Conver Into ASCII Char=" ;
   cin>>Str;
   cout << endl;
 std::istringstream iss (Str);
iss.flags(std::ios::hex);
int i;
iss >> i;

std::cout <<"OUTPUT=" << (char)i  << std::endl; 
  
  return 0;
}

OUTPUT:
Enter A Hex Value (0x4D) To Conver Into Hex=0x6D
OUTPUT=m