C111123313331323113313331333133313231323221212111133132323131211   >>    C11112331333132311331333133313331323132322121211113313232313121   <<    C111123313331323113313331333133313231323221212111133132323131213   >>      C111123313331323113313331333133313231323221212111133132323131212   >>