C22212323232133313113313331333133313231323231311211213131133132313221   >>    C2221232323213331311331333133313331323132323131121121313113313231322   <<    C22212323232133313113313331333133313231323231311211213131133132313223   >>      C22212323232133313113313331333133313231323231311211213131133132313222   >>