C22212323232133313113313331333133313231333112123221322213331311   >>    C2221232323213331311331333133313331323133311212322132221333131   <<    C22212323232133313113313331333133313231333112123221322213331313   >>      C22212323232133313113313331333133313231333112123221322213331312   >>