C111123313331323113313331333133313231323221212111133132312322331   >>    C11112331333132311331333133313331323132322121211113313231232233   <<    C111123313331323113313331333133313231323221212111133132312322333   >>      C111123313331323113313331333133313231323221212111133132312322332   >>