diff --git a/parsing.c b/parsing.c
new file mode 100644
index 0000000..753c2d9
--- /dev/null
+++ b/parsing.c
@@ -0,0 +1,38 @@
+/* ************************************************************************** */
+/*                                                                            */
+/*                                                        :::      ::::::::   */
+/*   parsing.c                                          :+:      :+:    :+:   */
+/*                                                    +:+ +:+         +:+     */
+/*   By: mteriier <mteriier@student.42lyon.fr>      +#+  +:+       +#+        */
+/*                                                +#+#+#+#+#+   +#+           */
+/*   Created: 2025/12/08 16:21:05 by mteriier          #+#    #+#             */
+/*   Updated: 2025/12/08 16:50:25 by mteriier         ###   ########lyon.fr   */
+/*                                                                            */
+/* ************************************************************************** */
+
+#include "push_swap.h"
+#include <stdlib.h>
+
+t_stack	*parsing(int argc, char **argv)
+{
+	size_t	i;
+	int		stock;
+	t_stack	*first;
+	t_stack	*new;
+
+	i = 1;
+	while (i < argc)
+	{
+		stock = ft_atoi(argv[i]);
+		new = new_stack(stock);
+		if (!new && !first)
+			return (NULL);
+		else if (!new)
+		{
+			stack_clear_all(first, first);
+			return (NULL);
+		}
+		stack_add_back(&first, new);
+		i++;
+	}
+}