C22212323232133313113313331333132313231333132212132312222131111   >>    C2221232323213331311331333133313231323133313221213231222213111   <<    C22212323232133313113313331333132313231333132212132312222131113   >>      C22212323232133313113313331333132313231333132212132312222131112   >>