C22212323232133313113313331333133313231323231311211213131233131   >>    C2221232323213331311331333133313331323132323131121121313123313   <<    C22212323232133313113313331333133313231323231311211213131233133   >>      C22212323232133313113313331333133313231323231311211213131233132   >>