#include <iostream>
#include <cctype>
using namespace std;

void readAndCount (int &numWords, int letterCount[]);
// Reads a line of input. Counts the words and the number
// of occurrences of each letter.

void outputLetterCounts (int letterCount[]);
// Prints the number of occurrences of each letter that
// appears in the input line.

int main(){
  int numWords;
  int letterCount[26];  // stores the frequency of each letter

  cout << "Enter a line of text.." << endl << endl;

  readAndCount (numWords, letterCount);

  cout << endl;
  cout << numWords << " words" << endl;
  outputLetterCounts(letterCount);
  system("pause");
  return 0;
}

void readAndCount (int &numWords, int letterCount[]){
  int i = 0;
  unsigned int characterCount = 0;
  numWords = 0;
  string lineOfText;
  string madeLower(lineOfText);
  getline(cin,lineOfText);
  for (int i = 0; i < lineOfText.length( ); i++){
    madeLower[i] = tolower(lineOfText[i]);
    }
  while (madeLower[i] != '\0'){
    if (madeLower[i] == ' ' || madeLower[i] == ',' || madeLower[i] == '.')
      numWords++;
    else
      characterCount++;
    ++i;
    }
}

void outputLetterCounts(int letterCount[]){
  for (int i = 0; i < 26; i++){
    if (letterCount[i] > 0){
      cout << letterCount[i] << " " << char('a' + i) << endl;
	  }
  }
}