a,b=[int(x) for x in input().rstrip().split()]
if 13<=a:
  print(b)
elif 6<=a<=12:
  print(b//2)
else:
  print(0) int(x) for x in input().rstrip().split() for x in input().rstrip().split() x input().rstrip().split() ().rstrip().split ().rstrip() ().rstrip () input rstrip split for x in input().rstrip().split() int(x) int x a,b=[int(x) for x in input().rstrip().split()] a [int(x) for x in input().rstrip().split()] b if 13<=a:
  print(b)
elif 6<=a<=12:
  print(b//2)
else:
  print(0) 13<=a 13 a print(b) print b elif 6<=a<=12:
  print(b//2) 6<=a<=12 6<=a 6 a 12 print(b//2) print b//2 b 2 print(0) print 0 a,b=[int(x) for x in input().rstrip().split()] [int(x) for x in input().rstrip().split()] a b=[int(x) for x in input().rstrip().split()] [int(x) for x in input().rstrip().split()] b
a,b=[int(x) for x in input().rstrip().split()]
if 13<=a:
  print(b)
elif 6<=a<=12:
  print(b//2)
else:
  print(0)