s = input().strip()

# Extract N
n_str = ''
i = 0
while i < len(s) and s[i].isdigit():
    n_str += s[i]
    i += 1
n = int(n_str)

# Extract A and B
a = s[i:i + n]
b = s[i + n:i + 2 * n]

# Check for any console that supports Coderraria and is owned
found = False
for i in range(n):
    if a[i] == 'o' and b[i] == 'o':
        found = True
        break

if found:
    print("Lucky Turtleman")
else:
    print("Unlucky Turtleman")