C222133313331333131123313231333133313331333132112323133313233133323231   >>    C22213331333133313112331323133313331333133313211232313331323313332323   <<    C222133313331333131123313231333133313331333132112323133313233133323233   >>      C222133313331333131123313231333133313331333132112323133313233133323232   >>