C1111233133313231133133313331333133313223313133121111331121133132311211312111   >>    C111123313331323113313331333133313331322331313312111133112113313231121131211   <<    C1111233133313231133133313331333133313223313133121111331121133132311211312113   >>      C1111233133313231133133313331333133313223313133121111331121133132311211312112   >>