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