/*
** wc.c - count of lines, words & characters from standard input.
*/

#include <stdio.h>

typedef enum { False, True } bool;

int
main( void )
{
   unsigned long  nl = 0L;   /* #lines */
   unsigned long  nw = 0L;   /* #words */
   unsigned long  nc = 0L;   /* #chars */
   int   c;
   bool  inword = False;     /* True only when inside a word */

   while ( (c = getchar()) != EOF ) 
   {
      ++nc;
      if ( c == '\n' )
      {
         ++nl;
      }
      if ( c == ' ' || c == '\t' || c == '\n'
           || c == '\r' || c == '\v' || c == '\f' ) /* if whitespace */
      {
         inword = False;
      }
      else if ( !inword )
      {
         inword = True;
         ++nw;
      }
   }

   printf( "%lu lines, %lu words, %lu chars\n", nl, nw, nc );
}