A,B = map(int,input().split())
if 6<=A and A<=12:
  print(int(B/2))
elif A<=5:
  print('0')
else:
  print(B) A,B = map(int,input().split()) A map(int,input().split()) map int input().split() ().split () input split B if 6<=A and A<=12:
  print(int(B/2))
elif A<=5:
  print('0')
else:
  print(B) 6<=A and A<=12 6<=A 6 A A<=12 A 12 print(int(B/2)) print int(B/2) int B/2 B 2 elif A<=5:
  print('0') A<=5 A 5 print('0') print '0' print(B) print B 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 6<=A and A<=12:
  print(int(B/2))
elif A<=5:
  print('0')
else:
  print(B)