C222133313331333131123313231333133313331333133313331333131133133313112113123121   >>    C22213331333133313112331323133313331333133313331333133313113313331311211312312   <<    C222133313331333131123313231333133313331333133313331333131133133313112113123123   >>      C222133313331333131123313231333133313331333133313331333131133133313112113123122   >>