C3132121111331312113313331333133313331333112331333132322131331121   >>    C313212111133131211331333133313331333133311233133313232213133112   <<    C3132121111331312113313331333133313331333112331333132322131331123   >>      C3132121111331312113313331333133313331333112331333132322131331122   >>