#include "mystdlib.h"
#include <stdint.h>
#include <stdio.h>
#include <unistd.h>
#include <fcntl.h>
#include <stdlib.h>
#include <string.h>

int main() {
  char table[64];
  int  outfiles[64], i, off;

  for( i=0; i<64; ++i ) outfiles[i] = -1;
  while( fgets( table, sizeof(table), stdin ) ) {
    int off = ( table[strlen(table)-1] = 0 ); /* fgets sucks */
    MAP f = map_file( table, 1 );
    uint32_t *p = (uint32_t*)(f->addr);
    uint32_t count = p[0], columns = p[1] / 4 - 1;
    unsigned int file, strnr;

    for( file=0; file<columns; ++file ) {
      /* Create outfile, if it is not yet there */
      if( outfiles[file] == -1 ) {
        sprintf( table, "%02d_unknown", file+4 );
        outfiles[file] = open( table, O_WRONLY | O_APPEND | O_CREAT, 0644 );
        if ( outfiles[file] == -1 ) exit(1);
      }
      off = p[file+1];
      /* Look for end of this chunk, which is <count> strings long */
      for( strnr=0; strnr < count; ++strnr ) while( f->addr[off++] );
      write( outfiles[file], f->addr + p[file+1], off - p[file+1] );
    }
    unmap_file(&f);
  }
  for( i=0; i<64; ++i ) close( outfiles[i] );
  return 0;
}