C2221333133313331311233132313331333133313331321123231333132213233112321   >>    C222133313331333131123313231333133313331333132112323133313221323311232   <<    C2221333133313331311233132313331333133313331321123231333132213233112323   >>      C2221333133313331311233132313331333133313331321123231333132213233112322   >>