C3132121111331312113313331333133313331333132313331333133313232233312131   >>    C313212111133131211331333133313331333133313231333133313331323223331213   <<    C3132121111331312113313331333133313331333132313331333133313232233312133   >>      C3132121111331312113313331333133313331333132313331333133313232233312132   >>