C22212323232133313113313331333132313231333132322123323322333231   >>    C2221232323213331311331333133313231323133313232212332332233323   <<    C22212323232133313113313331333132313231333132322123323322333233   >>      C22212323232133313113313331333132313231333132322123323322333232   >>