C111123313331323113313331333133313231323221212111133132321123231311332321   >>    C11112331333132311331333133313331323132322121211113313232112323131133232   <<    C111123313331323113313331333133313231323221212111133132321123231311332323   >>      C111123313331323113313331333133313231323221212111133132321123231311332322   >>