C22212323232133313113313331333133313231323133313331121231221313122311   >>    C2221232323213331311331333133313331323132313331333112123122131312231   <<    C22212323232133313113313331333133313231323133313331121231221313122313   >>      C22212323232133313113313331333133313231323133313331121231221313122312   >>