func_code_string: #include <bits/stdc++.h>   using namespace std;   int main() {     string a, b;     cin >> a >> b;     long long int mx = 0;     for (long long int i = 0; i < a.size(); i++) {       long long int g = (a[i] -  0 );       mx = max(mx, g);     }     for (long long int i = 0; i < b.size(); i++) {       long long int g = (b[i] -  0 );       mx = max(mx, g);     }     mx++;     string h =   ;     long long int c = 0, s = 0;     for (long long int i = 0; i < 20; i++) {       if (a.size() < i) a =  0  + a;       if (b.size() < i) b =  0  + b;     }     for (long long int i = 18; i >= 0; i--) {       long long int q = (a[i] -  0 ), w = (b[i] -  0 );       s = (q + w + c) % mx;       char ch = ( 0  + s);       h = ch + h;       c = (q + w + c) / mx;     }     long long int k = 0;     while (h[k] ==  0 ) k++;     cout << 19 - k << endl;   }   