C22212323232133313113313331333133313231323231311211221113323221   >>    C2221232323213331311331333133313331323132323131121122111332322   <<    C22212323232133313113313331333133313231323231311211221113323223   >>      C22212323232133313113313331333133313231323231311211221113323222   >>