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

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