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