#include <iostream>
using namespace std;
int main () {
// Declaram patru variabile pentru a stoca elementele sirului.
int a, b, c, d;
// Citim cele patru numere de la tastatura.
std::cin >> a >> b >> c >> d;
// Declaram variabile booleene pentru a verifica monotonia.
bool crescator = true;
bool descrescator = true;
// Verificam daca sirul este monoton crescator.
// Daca a >= b sau b >= c sau c >= d, sirul nu este strict crescator.
if (a >= b || b >= c || c >= d) {
crescator = false;
}
// Verificam daca sirul este monoton descrescator.
// Daca a <= b sau b <= c sau c <= d, sirul nu este strict descrescator.
if (a <= b || b <= c || c <= d) {
descrescator = false;
}
// Acum verificam si afisam rezultatul.
if (crescator) {
std::cout << "Crescator" << std::endl;
} else if (descrescator) {
std::cout << "Descrescator" << std::endl;
} else {
std::cout << "Nemonoton" << std::endl;
}
return 0;
}
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