C2221333133313331311233132313331333133313331321123231333132212111112321121   >>    C222133313331333131123313231333133313331333132112323133313221211111232112   <<    C2221333133313331311233132313331333133313331321123231333132212111112321123   >>      C2221333133313331311233132313331333133313331321123231333132212111112321122   >>