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

if A <= 5:
    print('0')
elif 6 <= A <= 12:
    print(math.ceil(B / 2))
else:
    print(B) import math math A, B = map(int, input().split()) A map(int, input().split()) map int input().split() ().split () input split B if A <= 5:
    print('0')
elif 6 <= A <= 12:
    print(math.ceil(B / 2))
else:
    print(B) A <= 5 A 5 print('0') print '0' elif 6 <= A <= 12:
    print(math.ceil(B / 2)) 6 <= A <= 12 6 <= A 6 A 12 print(math.ceil(B / 2)) print math.ceil(B / 2) math.ceil math ceil B / 2 B 2 print(B) print B A, B = map(int, input().split()) map(int, input().split()) A B = map(int, input().split()) map(int, input().split()) B
import math
A, B = map(int, input().split())

if A <= 5:
    print('0')
elif 6 <= A <= 12:
    print(math.ceil(B / 2))
else:
    print(B)
