C3132121111331312113313331333133313331333112331333132333132322331333112133121   >>    C313212111133131211331333133313331333133311233133313233313232233133311213312   <<    C3132121111331312113313331333133313331333112331333132333132322331333112133123   >>      C3132121111331312113313331333133313331333112331333132333132322331333112133122   >>