C3132121111331312113313331333133313331333112331333132322231231211   >>    C313212111133131211331333133313331333133311233133313232223123121   <<    C3132121111331312113313331333133313331333112331333132322231231213   >>      C3132121111331312113313331333133313331333112331333132322231231212   >>