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