func_code_string: #include <bits/stdc++.h>   using namespace std;   int ans[1000005];   int main() {     int n;     cin >> n;     int a[n], b[n];     for (int i = 0; i < n; i++) cin >> a[i];     for (int i = 0; i < n; i++) cin >> b[i];     int l = 0;     for (int i = 0; i < n; i++) {       for (int j = i; j < n; j++) {         if (b[j] == a[i]) {           for (int k = j; k > i; k--) {             ans[l++] = k;             swap(b[k - 1], b[k]);           }           break;         }       }     }     cout << l << endl;     for (int i = 0; i < l; i++) {       cout << ans[i] <<     << ans[i] + 1 << endl;     }   }   