#include <stdio.h>

#define IN  1
#define OUT 0

int
main ()
{
  int c;
  int state;
  int len;     // Keeps track of the length of the current word

  state = OUT;
  len = 0;

  while ((c = getchar()) != EOF)
    {
      if (c == ' ' || c == '\n' || c == '\t')
        {
          printf ("Word of length %d.\n", len);
          state = OUT;
        }
      else
        {
          
          state = IN;
        }
    }

  return 0;
}