C22213331333133313112331323133313331333132321233133313231333133112121211   >>    C2221333133313331311233132313331333133313232123313331323133313311212121   <<    C22213331333133313112331323133313331333132321233133313231333133112121213   >>      C22213331333133313112331323133313331333132321233133313231333133112121212   >>