func_code_string: #include <bits/stdc++.h>   using namespace std;   long long t, a, b, ans = 0;   int main() {     scanf( %lld , &t);     while (t--) {       scanf( %lld%lld , &a, &b);       ans = 0;       if (b >= 9) ans++;       if (b >= 99) ans++;       if (b >= 999) ans++;       if (b >= 9999) ans++;       if (b >= 99999) ans++;       if (b >= 999999) ans++;       if (b >= 9999999) ans++;       if (b >= 99999999) ans++;       if (b >= 999999999) ans++;       printf( %lld n , a * ans);     }     return 0;   }   