C111112111133131121133133313331333131333132322331333131133131122112313111   >>    C11111211113313112113313331333133313133313232233133313113313112211231311   <<    C111112111133131121133133313331333131333132322331333131133131122112313113   >>      C111112111133131121133133313331333131333132322331333131133131122112313112   >>