C3132121111331312113313331333133313331333112331333132213331312232131221   >>    C313212111133131211331333133313331333133311233133313221333131223213122   <<    C3132121111331312113313331333133313331333112331333132213331312232131223   >>      C3132121111331312113313331333133313331333112331333132213331312232131222   >>