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

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