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