C2221333133313331311233132313331333133313331321123231333132313123233221   >>    C222133313331333131123313231333133313331333132112323133313231312323322   <<    C2221333133313331311233132313331333133313331321123231333132313123233223   >>      C2221333133313331311233132313331333133313331321123231333132313123233222   >>