C11111211113313112113313331333133313331333131133132213331311311   >>    C1111121111331311211331333133313331333133313113313221333131131   <<    C11111211113313112113313331333133313331333131133132213331311313   >>      C11111211113313112113313331333133313331333131133132213331311312   >>