C111123313121111121111331333133313331333132232233131211111133132313121122112111   >>    C11112331312111112111133133313331333133313223223313121111113313231312112211211   <<    C111123313121111121111331333133313331333132232233131211111133132313121122112113   >>      C111123313121111121111331333133313331333132232233131211111133132313121122112112   >>