C222133313331333131123313231333133313331313113313331333131333133323221333121311   >>    C22213331333133313112331323133313331333131311331333133313133313332322133312131   <<    C222133313331333131123313231333133313331313113313331333131333133323221333121313   >>      C222133313331333131123313231333133313331313113313331333131333133323221333121312   >>