A, B = map(int, input().split())
if A>= 13:
  print(B)
elif A<13 and A> 5:
  print(B//2)
else:
  print(0) A, B = map(int, input().split()) A map(int, input().split()) map int input().split() ().split () input split B if A>= 13:
  print(B)
elif A<13 and A> 5:
  print(B//2)
else:
  print(0) A>= 13 A 13 print(B) print B elif A<13 and A> 5:
  print(B//2) A<13 and A> 5 A<13 A 13 A> 5 A 5 print(B//2) print B//2 B 2 print(0) print 0 A, B = map(int, input().split()) map(int, input().split()) A B = map(int, input().split()) map(int, input().split()) B
A, B = map(int, input().split())
if A>= 13:
  print(B)
elif A<13 and A> 5:
  print(B//2)
else:
  print(0)