include

using namespace std; / run this program using the console pauser or add your own getch, system("pause") or input loop /

int main(int argc, char** argv) {

int m=0;
cin>>m;
for(unsigned long long i=1;i<=m;i++){
	unsigned long long k=i*i;
	if(k>=m && k%m==0){
		cout<<k/m;
		break;
	}
	
}
return 0;

}