C2221333133313331311233132313331333133313331323321111121133132322333231221   >>    C222133313331333131123313231333133313331333132332111112113313232233323122   <<    C2221333133313331311233132313331333133313331323321111121133132322333231223   >>      C2221333133313331311233132313331333133313331323321111121133132322333231222   >>