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