Numar suspect

Un numar e suspect daca e sufixul patratului sau.

#include <iostream>

using namespace std;

int main() {

 int n, i = 0, ii, total = 0;
 cin >> n;

 while (total < n) {
  i++;
  ii = i * i;
  int val = i;
  bool f = true;
  while (i != 0) {
   int ci = i % 10;
   int cii = ii % 10;

   i = i / 10;
   ii = ii / 10;

   if (ci != cii) {
    f = false;
    break;
   }
  }
  i = val;
  if (f) {
   cout << val << ", ";
   total++;
  }
 }
 return 0;
}