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