#include <bits/stdc++.h>
using namespace std;

void solve(int k) {
   string s = to_string(k);
   int v[] = {2,3,4,5,6};
   cout<< ((s[0] - '0') - 1) * 10 + v[s.length()] << endl;
}
int main() {
   int k =4 ; N = 5;
   solve(k);
   return 0;
}

C++✅
Accenture

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Accenture
C++✅