C2221333133313331311233132313331333133313331321123231333133313122232211   >>    C222133313331333131123313231333133313331333132112323133313331312223221   <<    C2221333133313331311233132313331333133313331321123231333133313122232213   >>      C2221333133313331311233132313331333133313331321123231333133313122232212   >>