C2221333133313331311233132313331333133313331323321111331323123321   >>    C222133313331333131123313231333133313331333132332111133132312332   <<    C2221333133313331311233132313331333133313331323321111331323123323   >>      C2221333133313331311233132313331333133313331323321111331323123322   >>