#include <iostream>
#include <cassert>
using namespace std;
int main(){
	long long n;
	cin >> n;

	for(long long k = 0; 2*k-1 <= n; ++k){
		for(long long m = 0; m < k; ++m)
			if(k*k-m*m == n){
				cout << k << ' ' << m << endl;
				return 0;
			}
	}
	cout << "impossible\n";
}