C22212323232133313113313331333133313231323223323232232113233311   >>    C2221232323213331311331333133313331323132322332323223211323331   <<    C22212323232133313113313331333133313231323223323232232113233313   >>      C22212323232133313113313331333133313231323223323232232113233312   >>