#include <iostream>
using namespace std;
int ar[9],aCnt,bCnt;
int main()
{
for(int x=1; x<=8; x++)scanf("%d",&ar[x]);
for(int x=1; x<=8; x++)
{
if(x==ar[x])aCnt++;
if(9-x==ar[x]) bCnt++;
}
if(aCnt==8)printf("ascending");
else if(bCnt==8) printf("descending");
else printf("mixed");
}