BAEKJOON #2920) 음계

# 내 풀이

num = list(map(int, input().split()))
result = []
for i in range(len(num)-1):
        if num[i]+1 == num[i+1]:
            result.append("ascending")
        elif num[i]-1 == num[i+1]:
            result.append("descending")
        else:
            result.append("mixed")
if "mixed" in result:
    print("mixed")
elif "ascending" in result:
    print("ascending")
else:
    print("descending")

 

# 풀이

num = list(map(int, input().split()))

ascending = True
descending = True

for i in range(1, 8):
	if num[i] > num[i-1]:
    	descending = False
    elif num[i] < num[i-1]:
    	ascending = False

if ascending:
	print("ascending")
elif descending:
	print("descending")
else:
	print("mixed")