C22212323232133313113313331333132313331323132213231312121211311331   >>    C2221232323213331311331333133313231333132313221323131212121131133   <<    C22212323232133313113313331333132313331323132213231312121211311333   >>      C22212323232133313113313331333132313331323132213231312121211311332   >>