a, b = map(int, input().split())

if a >= 13:
  print(b)
elif 6 <= a <= 12:
  print(int(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 6 <= a <= 12:
  print(int(b/2))
else:
  print(0) a >= 13 a 13 print(b) print b elif 6 <= a <= 12:
  print(int(b/2)) 6 <= a <= 12 6 <= a 6 a 12 print(int(b/2)) print int(b/2) int 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 6 <= a <= 12:
  print(int(b/2))
else:
  print(0)
