C3132121111133313233121111331333133313331333133313331323132313231322331   >>    C313212111113331323312111133133313331333133313331333132313231323132233   <<    C3132121111133313233121111331333133313331333133313331323132313231322333   >>      C3132121111133313233121111331333133313331333133313331323132313231322332   >>