[2920] 음계

#include <iostream>
#include <string>
using namespace std;
int main()
{
	string arr;
	getline(cin, arr);
	if (arr == "1 2 3 4 5 6 7 8")
	{
		cout << "ascending" << endl;
	}
	else if (arr == "8 7 6 5 4 3 2 1")
	{
		cout << "descending" << endl;
	}
	else
	{
		cout << "mixed" << endl;
	}
	return 0;
}