C2221333133313331311233132313331333133313331321123231333132313232222112221231   >>    C222133313331333131123313231333133313331333132112323133313231323222211222123   <<    C2221333133313331311233132313331333133313331321123231333132313232222112221233   >>      C2221333133313331311233132313331333133313331321123231333132313232222112221232   >>