C22212323232133313113313331333132313331323131331213223133322331   >>    C2221232323213331311331333133313231333132313133121322313332233   <<    C22212323232133313113313331333132313331323131331213223133322333   >>      C22212323232133313113313331333132313331323131331213223133322332   >>