def solution(s, m):
if s < 1024:
return "No thanks"
d = s - 1023
k = 512
while k > 0:
if m >= k:
m -= k
if d >= k:
d -= k
k //= 2
if d > 0:
return "Impossible"
return "Thanks"
s, m = map(int, input().split())
print(solution(s, m))