#include <ctype.h>

#include <stdio.h>

#include <stdlib.h>

#include <sys/types.h>

int

main (int argc, char *argv[])

{

  int n;

  char *line = NULL;

  size_t len = 0;

  if (argc == 1)

    {

      static char *new_argv[] = { NULL, (char *) "/dev/stdin", NULL };

      argv = new_argv;

      argc = 2;

    }

  for (n = 1; n < argc; ++n)

    {

      FILE *fp = fopen (argv[n], "r");

      if (fp == NULL)

	continue;

      while (! feof (fp))

	{

	  ssize_t cnt = getline (&line, &len, fp);

	  char *runp;

	  if (cnt <= 0)

	    break;

	  runp = line;

	  do

	    {

	      if (runp[0] == '<' && runp[1] == 'U' && isxdigit (runp[2])

		  && isxdigit (runp[3]) && isxdigit (runp[4])

		  && isxdigit (runp[5]) && runp[6] == '>')

		{

		  unsigned int val = strtoul (runp + 2, NULL, 16);

		  //putchar ('<');

		  if (val < 128)

		    putchar (val);

		  else if (val < 0x800)

		    {

		      putchar (0xc0 | (val >> 6));

		      putchar (0x80 | (val & 0x3f));

		    }

		  else

		    {

		      putchar (0xe0 | (val >> 12));

		      putchar (0x80 | ((val >> 6) & 0x3f));

		      putchar (0x80 | (val & 0x3f));

		    }

		  //putchar ('>');

		  runp += 7;

		}

	      else

		putchar (*runp++);

	    }

	  while (runp < &line[cnt]);

	}

      fclose (fp);

    }

  return 0;

}