A, B = map(int, input().split())

if(A>=13):
  print(B)
elif(6<=A<=12):
  print(int(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(int(B/2))
elif(A<=5):
  print("0") A>=13 A 13 print(B) print B elif(6<=A<=12):
  print(int(B/2)) 6<=A<=12 6<=A 6 A 12 print(int(B/2)) print int(B/2) int B/2 B 2 elif(A<=5):
  print("0") A<=5 A 5 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(int(B/2))
elif(A<=5):
  print("0")