C3132121111331312113313331333133313331322121133133313231333133313223131   >>    C313212111133131211331333133313331333132212113313331323133313331322313   <<    C3132121111331312113313331333133313331322121133133313231333133313223133   >>      C3132121111331312113313331333133313331322121133133313231333133313223132   >>