C2221333133313331311233132313331333133313331323223311233133313332313233121   >>    C222133313331333131123313231333133313331333132322331123313331333231323312   <<    C2221333133313331311233132313331333133313331323223311233133313332313233123   >>      C2221333133313331311233132313331333133313331323223311233133313332313233122   >>