C22212323232133313113313331333132313231333132212132311131332311   >>    C2221232323213331311331333133313231323133313221213231113133231   <<    C22212323232133313113313331333132313231333132212132311131332313   >>      C22212323232133313113313331333132313231333132212132311131332312   >>