C22212323232133313113313331333132313331323132323131232322123312321   >>    C2221232323213331311331333133313231333132313232313123232212331232   <<    C22212323232133313113313331333132313331323132323131232322123312323   >>      C22212323232133313113313331333132313331323132323131232322123312322   >>