C22212323232133313113313331333132313231333132322123323313113311   >>    C2221232323213331311331333133313231323133313232212332331311331   <<    C22212323232133313113313331333132313231333132322123323313113313   >>      C22212323232133313113313331333132313231333132322123323313113312   >>