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

if a >= 13:
    print(b)
elif a < 13 and a>=6:
    print(int(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 a < 13 and a>=6:
    print(int(b//2))
else:
    print(0) a >= 13 a 13 print(b) print b elif a < 13 and a>=6:
    print(int(b//2)) a < 13 and a>=6 a < 13 a 13 a>=6 a 6 print(int(b//2)) print int(b//2) int 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 a < 13 and a>=6:
    print(int(b//2))
else:
    print(0)