C3132121111331312113313331333133313331333112331333132223113323221   >>    C313212111133131211331333133313331333133311233133313222311332322   <<    C3132121111331312113313331333133313331333112331333132223113323223   >>      C3132121111331312113313331333133313331333112331333132223113323222   >>