C22212323232133313113313331333133313231323133311232332132321212311   >>    C2221232323213331311331333133313331323132313331123233213232121231   <<    C22212323232133313113313331333133313231323133311232332132321212313   >>      C22212323232133313113313331333133313231323133311232332132321212312   >>