C22212323232133313113313331333133313231323133313331121231221313223231   >>    C2221232323213331311331333133313331323132313331333112123122131322323   <<    C22212323232133313113313331333133313231323133313331121231221313223233   >>      C22212323232133313113313331333133313231323133313331121231221313223232   >>