a, b = map(int, input().split())
if a >= 13:
    print(b)
elif 12 >= a >= 6:
    print(int(b/2))
elif 5 >= a:
    print(int(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 12 >= a >= 6:
    print(int(b/2))
elif 5 >= a:
    print(int(0)) a >= 13 a 13 print(b) print b elif 12 >= a >= 6:
    print(int(b/2)) 12 >= a >= 6 12 >= a 12 a 6 print(int(b/2)) print int(b/2) int b/2 b 2 elif 5 >= a:
    print(int(0)) 5 >= a 5 a print(int(0)) print int(0) int 0 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 12 >= a >= 6:
    print(int(b/2))
elif 5 >= a:
    print(int(0))