C3132121111331312113313331333133313331333112331333133112313222331   >>    C313212111133131211331333133313331333133311233133313311231322233   <<    C3132121111331312113313331333133313331333112331333133112313222333   >>      C3132121111331312113313331333133313331333112331333133112313222332   >>