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