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

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

if A >= 13: print(B)
elif 6 <= A <= 12: print(B//2)
else: print(0)
