include

using namespace std; int main(){

for(int i=0;i<=9;i++){
	int sum_1=i*1000+i*100;
	for(int j=0;j<=9;j++){
		int sum_2=j*10+j;
		int sum=sum_1+sum_2;
		for(int z=10;z<=99;z++){
			if(z*z==sum){
				cout<<sum<<endl;
				break;
			}
		}
	}
}
	return 0;

}