a, b = map(int, input().split())

if a >= 13:
    print(b)
elif a > 5 and a < 13:
    print(int(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 > 5 and a < 13:
    print(int(b/2))
else:
    print(0) a >= 13 a 13 print(b) print b elif a > 5 and a < 13:
    print(int(b/2)) a > 5 and a < 13 a > 5 a 5 a < 13 a 13 print(int(b/2)) print int(b/2) int b/2 b 2 print(0) print 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 a > 5 and a < 13:
    print(int(b/2))
else:
    print(0)