C11111211113313112113313331333133313331333132212113313331333131133121   >>    C1111121111331311211331333133313331333133313221211331333133313113312   <<    C11111211113313112113313331333133313331333132212113313331333131133123   >>      C11111211113313112113313331333133313331333132212113313331333131133122   >>