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

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