C222133313331333131123313231333133313331333132213331333131333323213233311   >>    C22213331333133313112331323133313331333133313221333133313133332321323331   <<    C222133313331333131123313231333133313331333132213331333131333323213233313   >>      C222133313331333131123313231333133313331333132213331333131333323213233312   >>