#include <iostream>
using namespace std;
int main(){
int i;
int a;
bool flag = true;
cin >> a;
if(a==1){
for(i=2; i<=8; i++){
cin >> a;
if(a != i){
flag = false;
break;
}
}
if(flag) cout << "ascending\n";
else cout << "mixed\n";
}
else if(a==8){
for(i=7; i>0; i--){
cin >> a;
if(a != i){
flag = false;
break;
}
}
if(flag) cout << "descending\n";
else cout << "mixed\n";
}
else {
cout << "mixed\n";
}
return 0;
}
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