1<?xml version="1.0" encoding="UTF-8"?> 2<out>0: Test for source tree numbering 30: Level A 40: Level B 50: Level B, again 60: Level C 70: Level B 80: Level C 90: Level D 100: Level C 110: Level C, again 120: Level A 130: Level B 140: Level C 150: Level D 161: Level E 171: Level A 180: Level B 190: Level C 200: Level D 211: Level E 222: Level E, again 230: Level D 241: Level E 251: Level C 260: Level D 270: Level B 28</out>