A,B=map(int,input().split())
if A/6>2:
  print(B)
elif A/6>=1:
  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/6>2:
  print(B)
elif A/6>=1:
  print(B//2)
else:
  print(0) A/6>2 A/6 A 6 2 print(B) print B elif A/6>=1:
  print(B//2) A/6>=1 A/6 A 6 1 print(B//2) print 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/6>2:
  print(B)
elif A/6>=1:
  print(B//2)
else:
  print(0)