a,b=map(int,input().split())
if a>=13:
    print(b)
elif 6<=a<=12:
    print(b//2)
elif a<=5:
    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<=12:
    print(b//2)
elif a<=5:
    print("0") a>=13 a 13 print(b) print b elif 6<=a<=12:
    print(b//2) 6<=a<=12 6<=a 6 a 12 print(b//2) print b//2 b 2 elif a<=5:
    print("0") a<=5 a 5 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<=12:
    print(b//2)
elif a<=5:
    print("0")
