a, b = map(int, input().split())
if a > 12:
    print(b)
elif 6 <= a <= 12:
    print(b//2)
elif 0 <= a <= 5:
    print(0) a, b = map(int, input().split()) a map(int, input().split()) map int input().split() ().split () input split b if a > 12:
    print(b)
elif 6 <= a <= 12:
    print(b//2)
elif 0 <= a <= 5:
    print(0) a > 12 a 12 print(b) print b elif 6 <= a <= 12:
    print(b//2) 6 <= a <= 12 6 <= a 6 a 12 print(b//2) print b//2 b 2 elif 0 <= a <= 5:
    print(0) 0 <= a <= 5 0 <= a 0 a 5 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 > 12:
    print(b)
elif 6 <= a <= 12:
    print(b//2)
elif 0 <= a <= 5:
    print(0)