func_code_string: #include <bits/stdc++.h>   using namespace std;   long long int t, n, lenn;   long long int last(long long int x) {     long long int tr = x;     lenn = 0;     while (x > 0) {       tr = x % 10;       x /= 10;       ++lenn;     }     return tr;   }   int main() {     ios::sync_with_stdio(0);     cin.tie(0);     cout.tie(0);     cin >> t;     long long int x, lllll;     while (t--) {       cin >> n;       lllll = last(n);       if (lenn == 1) {         x = 1;       } else if (lenn == 2) {         x = 3;       } else if (lenn == 3) {         x = 6;       } else {         x = 10;       }       cout << x + 10 * (lllll - 1) <<   n ;     }     return 0;   }   