C22212323232133313113313331333132313331323133313331213132323122131211   >>    C2221232323213331311331333133313231333132313331333121313232312213121   <<    C22212323232133313113313331333132313331323133313331213132323122131213   >>      C22212323232133313113313331333132313331323133313331213132323122131212   >>