C222133313331333131123313231333133313331333132213211232313233321   >>    C22213331333133313112331323133313331333133313221321123231323332   <<    C222133313331333131123313231333133313331333132213211232313233323   >>      C222133313331333131123313231333133313331333132213211232313233322   >>