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

if(a >= 13):
  print(b)
elif(a <= 12 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 <= 12 and a >= 6):
  print(int(b/2))
else:
  print(0) a >= 13 a 13 print(b) print b elif(a <= 12 and a >= 6):
  print(int(b/2)) a <= 12 and a >= 6 a <= 12 a 12 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 <= 12 and a >= 6):
  print(int(b/2))
else:
  print(0)