C22212323232133313113313331333132313331323231323323232123233221   >>    C2221232323213331311331333133313231333132323132332323212323322   <<    C22212323232133313113313331333132313331323231323323232123233223   >>      C22212323232133313113313331333132313331323231323323232123233222   >>