a,b=map(int,input().split())
if 13<=a:
  print(b)
elif 6<=a<=12:
  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 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 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 13<=a:
  print(b)
elif 6<=a<=12:
  print(b//2)
else:
  print(0)