C2221333133313331311233132313331333133313331321123231333132233221311   >>    C222133313331333131123313231333133313331333132112323133313223322131   <<    C2221333133313331311233132313331333133313331321123231333132233221313   >>      C2221333133313331311233132313331333133313331321123231333132233221312   >>