a,b = map(int,input().split())

if a>12:
    print(b)
else:
    if a<6:
        print(0)
    else:
        print(b//2) a,b = map(int,input().split()) a map(int,input().split()) map int input().split() ().split () input split b if a>12:
    print(b)
else:
    if a<6:
        print(0)
    else:
        print(b//2) a>12 a 12 print(b) print b if a<6:
        print(0)
    else:
        print(b//2) a<6 a 6 print(0) print 0 print(b//2) print b//2 b 2 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)
else:
    if a<6:
        print(0)
    else:
        print(b//2)