A, B = list(map(int,input().split()))

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

if A <= 5:
    print(0)
elif A < 13:
    print(int(B/2))
else:
    print(B)