diff --git a/c02/ex11.c b/c02/ex11.c
new file mode 100644
index 0000000..cdf28f7
--- /dev/null
+++ b/c02/ex11.c
@@ -0,0 +1,20 @@
+/* ************************************************************************** */
+/*                                                                            */
+/*                                                        :::      ::::::::   */
+/*   ex11.c                                             :+:      :+:    :+:   */
+/*                                                    +:+ +:+         +:+     */
+/*   By: achubuko <marvin@42.fr>                    +#+  +:+       +#+        */
+/*                                                +#+#+#+#+#+   +#+           */
+/*   Created: 2023/11/28 20:16:09 by achubuko          #+#    #+#             */
+/*   Updated: 2023/11/28 20:19:12 by achubuko         ###   ########.fr       */
+/*                                                                            */
+/* ************************************************************************** */
+
+void	ft_putstr_non_printable(char *str);
+
+int	main(int argc, char **argv)
+{
+	if (argc != 2)
+		return (1);
+	ft_putstr_non_printable(argv[1]);
+}