#include <iostream>
#include <cmath>
using namespace std;

bool PotenzaDue(int);

int main()  {
	int N, x, numdec = 0;
	cin >> N;

	while(N != 0)  {
		cin >> x;
		numdec += x * pow(2, N-1);
		N--;
	}

	cout << numdec << " ";

	if(PotenzaDue(numdec))
		cout << "SI";
	else
		cout << "NO";





	return 0;
}

bool PotenzaDue(int x)  {
	for(int i = 1; i <= x; i *= 2)  {
		if(i == x)
			return true;
	}
	return false;
}