/**
 * ints - extract all the integers from standard input and print them
 *   one per line.
 */

// +---------+--------------------------------------------------------
// | Headers |
// +---------+

#include <stdio.h>	// For printf, getchar, and putchar
#include <ctype.h>	// For isdigit


// +-------+----------------------------------------------------------
// | Types |
// +-------+

/**
 * The states of our program.  We can either be inside our outside
 * of a number.
 */
enum state { IN, OUT };


// +------+-----------------------------------------------------------
// | Main |
// +------+

int
main ()
{
  int ch;			// An input character
  int sign = 0;                 // The sign, if there is one.
  enum state state = OUT;	// The state of input; initially outside.
  
  // Repeatedly read and process characters
  while ((ch = getchar ()) != EOF)
    {
      // Is it a digit?  If so, print it out and note that we're now
      // in a number.
      if (isdigit (ch))
        {
          // Print out the sign, if one is waiting 
          if (sign)
            {
              putchar (sign);
              sign = 0;
            }
          // Print it out
          putchar (ch);
          // And note that we're in a number.
          state = IN;
        } // if isdigit(ch)

      // Is it a plus or minus sign?  If so, remember it.
      else if ((ch == '+') || (ch == '-'))
        sign = ch;

      // Otherwise, it's neither a digit or a sign.  If we were in a
      // number, we should print a newline.
      else if (state == IN)
        {
          putchar ('\n');
          state = OUT;
          sign = 0;
        } // leaving a number

      // It's not a digit or a sign, and we're not in a number.  Clear
      // any signs that are set.
      else
        sign = 0;
    } // while

  // And we're done
  return 0;
} // main