h,w = list(map(int, input().split(' ')))

assert 0 <= h <= 23, "assertion error"
assert 0 <= w <= 59, "assertion error"

t = h*60 + w

if t < 7*60+30:
    print('Yes')
elif t < 8*60 + 30:
    print('Late')
else:
    print('No')