/**
11. Write a C++ program that changes  the first letter of 
each word in an input sentence
to upper case (if they are not already upper case) and prints a period at the
end of the last word unless there is already a period there. 

**/


#include<iostream>
#include<string>
using namespace std;
/* Format a sentence by capitalizing the first letter of all words
   and ending the sentence with a period. 

   You can close console input stream in Unix systems by
   typing Ctrl-D */

int main() {

  string a[30],b,last;
  int i=0,count,length;
  cout<<"Enter a line\n";

  //Read in the string

  while (cin>>b){
    a[i]=b;
    i++;
  }
  count=i;

  //Capitalize first letter of each word

  for(int j=0; j<count;j++){
    a[j][0]=toupper(a[j][0]);
  }

  //Put a period at the end if needed

  last=a[count-1];
  length=last.length();
  if(a[count-1].at(length-1) != '.'){
    a[count-1]=a[count-1]+'.';
  }

  //Output
 
  for(int j=0; j<count;j++){
    cout<<a[j]<<" ";
  }
}