C22212323232133313113313331333132313231333132212132311131121231   >>    C2221232323213331311331333133313231323133313221213231113112123   <<    C22212323232133313113313331333132313231333132212132311131121233   >>      C22212323232133313113313331333132313231333132212132311131121232   >>