N = int(input())
before = list(input())
after = list(input())
if N % 2 != 0:
for i in range(len(before)):
if before[i] == '1':
before[i] = '0'
else:
before[i] = '1'
if ''.join(before) == ''.join(after):
print('Deletion succeeded')
else:
print('Deletion failed')