diff --git a/ex00/handle_input.c b/ex00/handle_input.c
new file mode 100644
index 0000000..f098231
--- /dev/null
+++ b/ex00/handle_input.c
@@ -0,0 +1,71 @@
+/* ************************************************************************** */
+/*                                                                            */
+/*                                                        :::      ::::::::   */
+/*   handle_input.c                                     :+:      :+:    :+:   */
+/*                                                    +:+ +:+         +:+     */
+/*   By: smatthes <marvin@42.fr>                    +#+  +:+       +#+        */
+/*                                                +#+#+#+#+#+   +#+           */
+/*   Created: 2023/03/25 18:58:21 by smatthes          #+#    #+#             */
+/*   Updated: 2023/03/25 19:12:23 by smatthes         ###   ########.fr       */
+/*                                                                            */
+/* ************************************************************************** */
+
+int		check_inp_valid(int argc, char **argv, int n);
+int		str_len(char *str);
+void	atoi_arr(char **argv, int *borders, int n);
+
+int	handle_input(int argc, char **argv, int *borders, int n)
+{
+	if (check_inp_valid(argc, argv, n) == 0)
+		return (0);
+	atoi_arr(argv, borders, n);
+	return (1);
+}
+
+int	check_inp_valid(int argc, char **argv, int n)
+{
+	int		allowed_char_num;
+	int		i;
+	char	*inp;
+
+	if (argc != 2)
+		return (0);
+	inp = argv[1];
+	allowed_char_num = n * n * 2 - 1;
+	if (str_len(inp) != allowed_char_num)
+		return (0);
+	i = 0;
+	while (i < allowed_char_num)
+	{
+		if (i % 2 != 0 && inp[i] != ' ')
+		{
+			return (0);
+		}
+		if (i % 2 == 0 && (inp[i] < '1' || inp[i] > '4'))
+			return (0);
+		i++;
+	}
+	return (1);
+}
+
+int	str_len(char *str)
+{
+	int	i;
+
+	i = 0;
+	while (str[i])
+		i++;
+	return (i);
+}
+
+void	atoi_arr(char **argv, int *borders, int n)
+{
+	int	i;
+
+	i = 0;
+	while (i < n * n * 2 -1)
+	{
+		borders[i / 2] = argv[1][i] - '0';
+		i = i + 2;
+	}
+}