C3132121111331312113313331333133313331333112331333133311222233311   >>    C313212111133131211331333133313331333133311233133313331122223331   <<    C3132121111331312113313331333133313331333112331333133311222233313   >>      C3132121111331312113313331333133313331333112331333133311222233312   >>