C3132121111331312113313331333133313331333112331333133313122121322321   >>    C313212111133131211331333133313331333133311233133313331312212132232   <<    C3132121111331312113313331333133313331333112331333133313122121322323   >>      C3132121111331312113313331333133313331333112331333133313122121322322   >>