C22212323232133313113313331333132313331323133313331213132331233123321   >>    C2221232323213331311331333133313231333132313331333121313233123312332   <<    C22212323232133313113313331333132313331323133313331213132331233123323   >>      C22212323232133313113313331333132313331323133313331213132331233123322   >>