# -*- coding: utf-8 -*-

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

if a > 12:
    print(b)
elif 6 <= a <= 12:
    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 > 12:
    print(b)
elif 6 <= a <= 12:
    print(int(b / 2))
else:
    print(0) a > 12 a 12 print(b) print b elif 6 <= a <= 12:
    print(int(b / 2)) 6 <= a <= 12 6 <= a 6 a 12 print(int(b / 2)) print int(b / 2) int 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
# -*- coding: utf-8 -*-

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

if a > 12:
    print(b)
elif 6 <= a <= 12:
    print(int(b / 2))
else:
    print(0)