#include <assert.h>
#include <fstream.h>
#include <iostream.h>
#include <stdio.h>
#include <string.h>


int main(int argc, char** argv) {

  int characters[256];
  int pairs[256 * 256];

  for(int count = 0;count < 256;count++) characters[count] = 0;
  for(int count = 0;count < (256 * 256);count++) pairs[count] = 0;

  unsigned char lastchar;
  unsigned char input = cin.get();

  int chars_read = 0;;

  while(false == cin.eof()) {
    assert(0 <= (int) input);
    characters[(int) input]++;

    if(0 != chars_read) {
      pairs[(int) (lastchar * 256 + input)]++;
    }

    lastchar = input;
    input = cin.get();
    chars_read++;
  }
  
  int numberCharacters = 0;
  for(int count = 0;count < 256;count++)
    if(0 != characters[count]) numberCharacters++;

  cout << "There were " << numberCharacters << " distinct characters."
       << endl;

  for(int count = 0;count < 256;count++) {
    if(0 != characters[count])
      printf("%02x %d\n", count, characters[count]);
  }

  int numberPairs = 0;
  for(int count = 0;count < (256 * 256);count++)
    if(0 != pairs[count]) numberPairs++;

  cout << "There were " << numberPairs << " distinct pairs."
       << endl;

  for(int count1 = 0;count1 < 256;count1++) {
    for(int count2 = 0;count2 < 256;count2++) {
      if(0 != pairs[256 * count1 + count2])
	printf("%02x%02x %d\n", count1, count2,
	       pairs[256 * count1 + count2]);
    }
  }
}