n = gets.to_i

cnt = 0
for i in 0..100 do
	for j in 0..100 do
		for k in 0..100 do
			tmp = i * 5 + j * 2 + k * 3
			if (j > i) then 
				next 
			end
			
			if (tmp == n) then 
				cnt += 1
			end
		end
	end
end
p cnt