C222133313331333131123313231333133313331313113313331323233123121   >>    C22213331333133313112331323133313331333131311331333132323312312   <<    C222133313331333131123313231333133313331313113313331323233123123   >>      C222133313331333131123313231333133313331313113313331323233123122   >>