import itertools
import math
import fractions
import functools
import copy
a, b = map(int, input().split())
if a >= 13:
    print(b)
elif 6 <= a and 12 >= a:
    print(b//2)
else:
    print(0) import itertools itertools import math math import fractions fractions import functools functools import copy copy 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 and 12 >= a:
    print(b//2)
else:
    print(0) a >= 13 a 13 print(b) print b elif 6 <= a and 12 >= a:
    print(b//2) 6 <= a and 12 >= a 6 <= a 6 a 12 >= a 12 a 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
import itertools
import math
import fractions
import functools
import copy
a, b = map(int, input().split())
if a >= 13:
    print(b)
elif 6 <= a and 12 >= a:
    print(b//2)
else:
    print(0)