C22212323232133313113313331333133313231333112123221322121331121   >>    C2221232323213331311331333133313331323133311212322132212133112   <<    C22212323232133313113313331333133313231333112123221322121331123   >>      C22212323232133313113313331333133313231333112123221322121331122   >>