C22212323232133313113313331333132313231333132212132312211312111   >>    C2221232323213331311331333133313231323133313221213231221131211   <<    C22212323232133313113313331333132313231333132212132312211312113   >>      C22212323232133313113313331333132313231333132212132312211312112   >>