n = io.read("*n")
t = {}
if n == 0 then print(1) os.exit() end
for i = 1, 100 do
  t[i] = 0
end
for i = 0, 33 do
  for j = 0, 20 do
    for k = 0, 14 do
      v = i * 3 + j * 5 + k * 7
      if 0 < v and v <= 100 then
        t[v] = t[v] + 1
      end
    end
  end
end
print(t[n])