C22212323232133313113313331333133313231333112123221322211332321   >>    C2221232323213331311331333133313331323133311212322132221133232   <<    C22212323232133313113313331333133313231333112123221322211332323   >>      C22212323232133313113313331333133313231333112123221322211332322   >>