import sys
l = [0, 0, 4, 4, 4, 4, 4, 4, 4, 4, 16, 4]
s = 0
for i in range(int(input())):
k = int(input())
s += k
l[k] -= 1
a = b = 0
#if s >= 21:
# print("DOSTA")
# sys.exit()
for i in range(2, 12):
if s + i <= 21:
a += l[i]
else:
b += l[i]
print("VUCI" if a > b else "DOSTA")