A, B = map(int,input().split())
if A > 12:
    print(B)
elif A > 5 and A < 13:
    print(int(B/2))
elif A < 6:
    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 A > 5 and A < 13:
    print(int(B/2))
elif A < 6:
    print(0) A > 12 A 12 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 elif A < 6:
    print(0) A < 6 A 6 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 > 12:
    print(B)
elif A > 5 and A < 13:
    print(int(B/2))
elif A < 6:
    print(0)