1<?xml version="1.0" encoding="UTF-8"?> 2<out>: Test for source tree numbering 3: Level A 4: Level B 5: Level B 6: Level C 7: Level B 8: Level C 9: Level D 10: Level A 11: Level B 12: Level C 13: Level D 14: Level E 15: Level A 16: Level B 17: Level C 18: Level D 19: Level E 20: Level D 21: Level E 22: Level C 23: Level D 24: Level B 25</out>