C111113331333132322331333133313331331121111121133133313211232313221311321   >>    C11111333133313232233133313331333133112111112113313331321123231322131132   <<    C111113331333132322331333133313331331121111121133133313211232313221311323   >>      C111113331333132322331333133313331331121111121133133313211232313221311322   >>