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Particle Beam Wrist Watch

Rick and Morty discovered Particle Beam Wrist Watch. Along with the watch they discovered two strings $S$ and $P$. The number of times they can use the watch is equal to the number of good substrings of $S$. A string is known as a good string if any [anagram](https://en.wikipedia.org/wiki/Anagram) of the string is lexicographically greater than every anagram of the string $P$. Find the nu

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solution.cppC++17

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