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