C222133313331333131123313231333133313331333133313331333133313113313331323121311   >>    C22213331333133313112331323133313331333133313331333133313331311331333132312131   <<    C222133313331333131123313231333133313331333133313331333133313113313331323121313   >>      C222133313331333131123313231333133313331333133313331333133313113313331323121312   >>