!636
!standard functions
!609 // main

String s = loadTextFile("input/input.txt", null);
StringBuilder buf = new StringBuilder();
for (String line : toLines(s)) {
  Matcher matcher = match(line, "^!include (#\\d+)");
  if (matcher.find()) {
    String id = matcher.group(1);
    buf.append(loadSnippet(id));
  } else
    buf.append(line);
  buf.append("\n");
}
saveTextFile("output/output.txt", buf.toString());