A, B = map(int, input().split())

if A <= 5:
	print("0")

elif A >= 13:
	print(B)

else:
	print(int(B/2)) A, B = map(int, input().split()) A map(int, input().split()) map int input().split() ().split () input split B if A <= 5:
	print("0")

elif A >= 13:
	print(B)

else:
	print(int(B/2)) A <= 5 A 5 print("0") print "0" elif A >= 13:
	print(B) A >= 13 A 13 print(B) print B print(int(B/2)) print int(B/2) int 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 <= 5:
	print("0")

elif A >= 13:
	print(B)

else:
	print(int(B/2))