C3132121111331312113313331333133313331333112331333132322332123121   >>    C313212111133131211331333133313331333133311233133313232233212312   <<    C3132121111331312113313331333133313331333112331333132322332123123   >>      C3132121111331312113313331333133313331333112331333132322332123122   >>