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

