C1111121111331311211331333133313331323131133133313222123313231322221211   >>    C111112111133131121133133313331333132313113313331322212331323132222121   <<    C1111121111331311211331333133313331323131133133313222123313231322221213   >>      C1111121111331311211331333133313331323131133133313222123313231322221212   >>