525/5
2 answers
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****1 0 5
5 | 5 2 5
****5 x
-----------
***** 2
***** 0 x
-----------
******2 5
******2 5
----------
********0 = R
5 | 5 2 5
****5 x
-----------
***** 2
***** 0 x
-----------
******2 5
******2 5
----------
********0 = R