#include <iostream>
using namespace std;
/*
Declaram si citim “a” si “b”.
Ne folosim de o structura decizionala cu condiția ca
“a” sa fie egal cu “b” sau 
“b” sa nu fie divizibil cu “a” si “a” sa nu fie divizibil cu “b”: 
	In caz afirmativ, afisam textul “NU”.
Altfel daca “a” este divizibil cu “b”: 
	Afisam catul impartirii lui “a” la “b”.
Altfel daca “b” este divizibil cu “a”: 
	Afisam suma dintre “a” si “b”.
*/
 
int main() {
	int a, b;
	cin >> a >> b;
	if (a == b || (b % a != 0 && a % b != 0)) {
		cout << "NU";
	} else if (a % b == 0) {
		cout << a / b;
	} else if (b % a == 0) {
		cout << a + b;
	}
	return 0;
}

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Cgo1MCA1IC0mZ3Q7IDEwCgoK

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