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