#include <iostream>
#include <string>
 
using namespace std;
 
int main()
{
  string first = "Bart";
  string last = "Simpson";
 
  cout << first << endl; // prints out Bart
 
  first[1] = 'r';
  cout << first << endl; // prints out Brrt
 
  first[2] = 'a';
  cout << first << endl; // prints out Brat
 
  first[1] = 'a';
  first[2] = 'r';
  cout << first << endl; // prints out Bart
 
  if ((first[0]>='A') && (first[0]<='Z'))
    cout << first << " starts with an upper case letter" << endl;
  else
    cout << first << " does not start with an upper case letter" << endl;
 
  return 0;
}

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