C2221333133313331311233132313331333133313331333133313331323133313231323221311   >>    C222133313331333131123313231333133313331333133313331333132313331323132322131   <<    C2221333133313331311233132313331333133313331333133313331323133313231323221313   >>      C2221333133313331311233132313331333133313331333133313331323133313231323221312   >>