Новое решение

JustABeast правка от
правка #17965 позже →
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+### Statement
+
+$13.1.13.$ [Insert the problem statement]
+
+### Solution
+
+![For problem $13.1.13$ |1488x2105, 31%](../../img/13.1.13/scan-1.png)
+
+![For problem $13.1.13$ |1488x2105, 31%](../../img/13.1.13/scan-0.png)
+
+
+
+#### Answer
+
+[Insert a concise answer or boxed result]