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- #include<bits/stdc++.h>
- using namespace std;
- int main() {
- for (int i = (int) sqrt(1000); i < 100; i++) {
- int n = i * i;//n is a square number;
- if (n < 1000 || n > 9999)continue;
- int high = n / 100;
- int low = n % 100;
- if (high % 11 == 0 && low % 11 == 0) {
- cout << n << endl;
- }
- }
- return 0;
- }
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