C2221333133313331311233132313331333133313232123313331323223313113311231   >>    C222133313331333131123313231333133313331323212331333132322331311331123   <<    C2221333133313331311233132313331333133313232123313331323223313113311233   >>      C2221333133313331311233132313331333133313232123313331323223313113311232   >>