C22212323232133313113313331333133313231323231311211212111312231   >>    C2221232323213331311331333133313331323132323131121121211131223   <<    C22212323232133313113313331333133313231323231311211212111312233   >>      C22212323232133313113313331333133313231323231311211212111312232   >>