Station Name

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Charlie has been given the task to give the station code to a newly created station. But he has a set of station codes $C$ from which he wants to find the **number of most appropriate station codes**. So he needs your help. Given a station name $S$, a station code $C_i$ for that station should satisfy the following three conditions: $1$. The first letter of $S$ and $C_i$ should be same. $2$.

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solution.cppC++17

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