C11111211113313112113313331333133313331333132212111133133313331322333123121   >>    C1111121111331311211331333133313331333133313221211113313331333132233312312   <<    C11111211113313112113313331333133313331333132212111133133313331322333123123   >>      C11111211113313112113313331333133313331333132212111133133313331322333123122   >>