C2221333133313331311233132313331333133313131133133313231322123121   >>    C222133313331333131123313231333133313331313113313331323132212312   <<    C2221333133313331311233132313331333133313131133133313231322123123   >>      C2221333133313331311233132313331333133313131133133313231322123122   >>