b = 0
for i in range (1, 100):
   for m in range (1, 50):
       for n in range (1, 20):
         if i * 1 + 2 * m + n * 5 == 100 and i != 0 and m != 0 and n != 0:
            b += 1
print(b)

/**************************************************************
	Problem: 1025
	User: admin
	Language: Python
	Result: Accepted
	Time:62 ms
	Memory:34480 kb
****************************************************************/