C22212323232133313113313331333132313231333132322123323321322311   >>    C2221232323213331311331333133313231323133313232212332332132231   <<    C22212323232133313113313331333132313231333132322123323321322313   >>      C22212323232133313113313331333132313231333132322123323321322312   >>