A, B = map(int, input().split())
if A >= 13:
	B = B
elif A <= 12 and A >= 6:
  B = B // 2
elif A < 6:
  B *= 0
print(B)  A, B = map(int, input().split()) A map(int, input().split()) map int input().split() ().split () input split B if A >= 13:
	B = B
elif A <= 12 and A >= 6:
  B = B // 2
elif A < 6:
  B *= 0 A >= 13 A 13 B = B B B elif A <= 12 and A >= 6:
  B = B // 2 A <= 12 and A >= 6 A <= 12 A 12 A >= 6 A 6 B = B // 2 B B // 2 B 2 elif A < 6:
  B *= 0 A < 6 A 6 B *= 0 B 0 print(B) print B B = B // 2 B // 2 B A, B = map(int, input().split()) map(int, input().split()) A B = B B B B *= 0 0 B B = map(int, input().split()) map(int, input().split()) B
A, B = map(int, input().split())
if A >= 13:
	B = B
elif A <= 12 and A >= 6:
  B = B // 2
elif A < 6:
  B *= 0
print(B) 