C2221333133313331311233132313331333133313331323133313112122123131   >>    C222133313331333131123313231333133313331333132313331311212212313   <<    C2221333133313331311233132313331333133313331323133313112122123133   >>      C2221333133313331311233132313331333133313331323133313112122123132   >>