def solve():
  a, b = map(int, input().split())
  if a >= 13:
    print(b)
  elif 13 > a >= 6:
    print(b//2)
  else:
    print(0)
  return 0
 
if __name__ == "__main__":
  solve() def solve():
  a, b = map(int, input().split())
  if a >= 13:
    print(b)
  elif 13 > a >= 6:
    print(b//2)
  else:
    print(0)
  return 0
  solve 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 13 > a >= 6:
    print(b//2)
  else:
    print(0)
   a >= 13 a 13 print(b) print b elif 13 > a >= 6:
    print(b//2)
   13 > a >= 6 13 > a 13 a 6 print(b//2) print b//2 b 2 print(0) print 0 return 0 0 if __name__ == "__main__":
  solve() __name__ == "__main__" __name__ "__main__" solve() solve def solve():
  a, b = map(int, input().split())
  if a >= 13:
    print(b)
  elif 13 > a >= 6:
    print(b//2)
  else:
    print(0)
  return 0
  def solve():
  a, b = map(int, input().split())
  if a >= 13:
    print(b)
  elif 13 > a >= 6:
    print(b//2)
  else:
    print(0)
  return 0
  solve
def solve():
  a, b = map(int, input().split())
  if a >= 13:
    print(b)
  elif 13 > a >= 6:
    print(b//2)
  else:
    print(0)
  return 0
 
if __name__ == "__main__":
  solve()
