func_code_string: #include <bits/stdc++.h>   using namespace std;   int n;   string a, b;   int main() {     ios_base::sync_with_stdio(0);     cin.tie(0);     cin >> n >> a >> b;     int p1 = -1, p2 = -1;     for (int i = 0; i < n; i++) {       if (a[i] != b[i]) {         p1 = i;         break;       }     }     for (int i = n - 1; i >= 0; i--) {       if (a[i] != b[i]) {         p2 = i;         break;       }     }     string x =   , y =   ;     for (int i = p1; i <= p2; i++) {       x += a[i];       y += b[i];     }     int sol = 0;     if (x + y.back() == x[0] + y) sol++;     if (y[0] + x == y + x.back()) sol++;     cout << sol <<   n ;     return 0;   }   