A, B = map(int, input().split())
if (A >= 13):
    print(B)
elif (A <= 5):
    print(0)
else:
    print(int(B/2)) 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):
    print(0)
else:
    print(int(B/2)) A >= 13 A 13 print(B) print B elif (A <= 5):
    print(0) A <= 5 A 5 print(0) print 0 print(int(B/2)) print int(B/2) int B/2 B 2 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(B)
elif (A <= 5):
    print(0)
else:
    print(int(B/2))
