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