C111112111133131121133133313331333131333132322331333131133131121213221   >>    C11111211113313112113313331333133313133313232233133313113313112121322   <<    C111112111133131121133133313331333131333132322331333131133131121213223   >>      C111112111133131121133133313331333131333132322331333131133131121213222   >>