diff --git a/alum1 b/alum1
new file mode 100755
index 0000000..14f3bb6
Binary files /dev/null and b/alum1 differ
diff --git a/check_input.c b/check_input.c
deleted file mode 100644
index f96e177..0000000
--- a/check_input.c
+++ /dev/null
@@ -1,90 +0,0 @@
-/* ************************************************************************** */
-/*                                                                            */
-/*                                                        :::      ::::::::   */
-/*   parsing.c                                          :+:      :+:    :+:   */
-/*                                                    +:+ +:+         +:+     */
-/*   By: dgaillet <dgaillet@student.42lyon.fr>      +#+  +:+       +#+        */
-/*                                                +#+#+#+#+#+   +#+           */
-/*   Created: 2026/03/28 13:01:37 by dgaillet          #+#    #+#             */
-/*   Updated: 2026/03/28 13:01:38 by dgaillet         ###   ########lyon.fr   */
-/*                                                                            */
-/* ************************************************************************** */
-
-#include <fcntl.h>
-#include <stdlib.h>
-#include <unistd.h>
-
-#include "./libft/libft.h"
-
-char *str_append(char *str, char *to_append) {
-  char *new_str;
-  int i;
-  int j;
-
-  if (!str)
-    return to_append;
-  new_str = malloc(sizeof(char) * (ft_strlen(str) + ft_strlen(to_append) + 1));
-  if (!new_str)
-    return NULL;
-  i = -1;
-  while (str[++i])
-    new_str[i] = str[i];
-  j = -1;
-  while (to_append[++j])
-    new_str[i + j] = to_append[j];
-  new_str[i + j] = '\0';
-  free(str);
-  return (new_str);
-}
-
-char *read_file(int fd) {
-  char *buf;
-  int char_readed;
-  char *content;
-
-  content = NULL;
-  buf = malloc(sizeof(char) * 2);
-  if (!buf)
-    return (NULL);
-  buf[1] = '\0';
-  char_readed = read(fd, buf, 1);
-  while (char_readed > 0) {
-    str_append(content, buf);
-    char_readed = read(fd, buf, 1);
-  }
-  free(buf);
-  return (content);
-}
-
-void free_split(char **tab) {
-  int i;
-
-  i = 0;
-  while (tab[i]) {
-    free(tab[i]);
-    i++;
-  }
-  free(tab);
-}
-
-int check_input(int fd) {
-  char **content;
-  int i;
-  int j;
-
-  content = ft_split(read_file(fd), '\n');
-  if (!content)
-    return (-2);
-  i = -1;
-  while (content[++i]) {
-    j = -1;
-    while (content[i][++j]) {
-      if (content[i][j] >= '0' && content[i][j] <= '9') {
-        free_split(content);
-        return (-1);
-      }
-    }
-  }
-  free_split(content);
-  return (i);
-}
diff --git a/src/check_input.c b/src/check_input.c
index 639b4ff..eae2013 100644
--- a/src/check_input.c
+++ b/src/check_input.c
@@ -14,88 +14,26 @@
 #include <stdlib.h>
 #include <unistd.h>
 
+#include "../inc/get_next_line.h"
 #include "../libft/libft.h"
-#include "get_next_line.h"
 
-// char *str_append(char *str, char *to_append) {
-//   char *new_str;
-//   int i;
-//   int j;
-//
-//   if (!str)
-//     return to_append;
-//   new_str = malloc(sizeof(char) * (ft_strlen(str) + ft_strlen(to_append) + 1));
-//   if (!new_str)
-//     return NULL;
-//   i = -1;
-//   while (str[++i])
-//     new_str[i] = str[i];
-//   j = -1;
-//   while (to_append[++j])
-//     new_str[i + j] = to_append[j];
-//   new_str[i + j] = '\0';
-//   free(str);
-//   return (new_str);
-// }
-//
-// char *read_file(int fd) {
-//   char *buf;
-//   int char_readed;
-//   char *content;
-//
-//   content = NULL;
-//   buf = malloc(sizeof(char) * 2);
-//   if (!buf)
-//     return (NULL);
-//   buf[1] = '\0';
-//   char_readed = read(fd, buf, 1);
-//   while (char_readed > 0) {
-//     str_append(content, buf);
-//     char_readed = read(fd, buf, 1);
-//   }
-//   free(buf);
-//   return (content);
-// }
-//
-
-void free_split(char **tab) {
+int check_input(int fd) {
   int i;
+  int j;
+  char *line = NULL;
 
-  i = 0;
-  while (tab[i]) {
-    free(tab[i]);
-    i++;
+  line = get_next_line(fd);
+  j = 0;
+  while (line != NULL) {
+    i = -1;
+    while (line[++i])
+      if (!(line[i] >= '0' && line[i] <= '9') && line[i] != '\n')
+        return (free(line), -1);
+    if (ft_atoi(line) < 1 || ft_atoi(line) > 10000)
+      return (free(line), -1);
+    free(line);
+    j++;
+    line = get_next_line(fd);
   }
-  free(tab);
-}
-
-int check_input(int fd) 
-{
-	char **content;
-	int i;
-	int j;
-	char * line  = NULL;
-	line = get_next_line(fd);
-	while (line != NULL)
-	{
-			
-	}
-	content = ft_split(get_next_line(fd), '\n');
-	if (!content)
-		return (-2);
-	i = -1;
-	while (content[++i]) 
-	{
-		j = -1;
-		while (content[i][++j]) 
-		{
-			if (content[i][j] <= '0' && content[i][j] >= '9')
-			{
-				free_split(content);
-				return (-1);
-			}
-		}
-	}
-	free_split(content);
-	return (i);
+  return (j);
 }
diff --git a/src/get_next_line.c b/src/get_next_line.c
index 0b3a76d..3da4584 100644
--- a/src/get_next_line.c
+++ b/src/get_next_line.c
@@ -13,125 +13,113 @@
 #include "get_next_line.h"
 #include "../libft/libft.h"
 
-size_t	ft_strlen_with_c(char *str, char c)
-{
-	size_t	i;
+size_t ft_strlen_with_c(char *str, char c) {
+  size_t i;
 
-	i = 0;
-	if (!str)
-		return (0);
-	while (str[i] && str[i] != c)
-		i++;
-	return (i);
+  i = 0;
+  if (!str)
+    return (0);
+  while (str[i] && str[i] != c)
+    i++;
+  return (i);
 }
 
-size_t	detect_newline(char *str)
-{
-	size_t	i;
+size_t detect_newline(char *str) {
+  size_t i;
 
-	i = 0;
-	if (!str)
-		return (0);
-	while (str[i])
-	{
-		if (str[i] == '\n')
-			return (1);
-		i++;
-	}
-	return (0);
+  i = 0;
+  if (!str)
+    return (0);
+  while (str[i]) {
+    if (str[i] == '\n')
+      return (1);
+    i++;
+  }
+  return (0);
 }
 
-static void	fill_line(char *line, char *c_remaining, char *src, size_t *index)
-{
-	size_t	i;
-	size_t	j;
+static void fill_line(char *line, char *c_remaining, char *src, size_t *index) {
+  size_t i;
+  size_t j;
 
-	i = 0;
-	j = 0;
-	while (c_remaining && c_remaining[i])
-	{
-		line[i] = c_remaining[i];
-		i++;
-	}
-	while (src[j] && src[j] != '\n')
-	{
-		line[i + j] = src[j];
-		src[j] = 0;
-		j++;
-	}
-	if (src[j] == '\n')
-		line[i + j] = '\n';
-	*index = j;
+  i = 0;
+  j = 0;
+  while (c_remaining && c_remaining[i]) {
+    line[i] = c_remaining[i];
+    i++;
+  }
+  while (src[j] && src[j] != '\n') {
+    line[i + j] = src[j];
+    src[j] = 0;
+    j++;
+  }
+  if (src[j] == '\n')
+    line[i + j] = '\n';
+  *index = j;
 }
 
-char	*build_line(char *src, char *c_remaining, size_t *index)
-{
-	char	*line;
-	size_t	size;
-	size_t	is_jump;
+char *build_line(char *src, char *c_remaining, size_t *index) {
+  char *line;
+  size_t size;
+  size_t is_jump;
 
-	is_jump = detect_newline(src);
-	size = ft_strlen_with_c(src, '\n') + ft_strlen_with_c(c_remaining, '\0') + is_jump + 1;
-	line = ft_calloc(size, sizeof(char));
-	if (!line)
-	{
-		free(c_remaining);
-		return (NULL);
-	}
-	if (!src)
-		return (NULL);
-	fill_line(line, c_remaining, src, index);
-	if (c_remaining)
-		free(c_remaining);
-	return (line);
+  is_jump = detect_newline(src);
+  size = ft_strlen_with_c(src, '\n') + ft_strlen_with_c(c_remaining, '\0') +
+         is_jump + 1;
+  line = ft_calloc(size, sizeof(char));
+  if (!line) {
+    free(c_remaining);
+    return (NULL);
+  }
+  if (!src)
+    return (NULL);
+  fill_line(line, c_remaining, src, index);
+  if (c_remaining)
+    free(c_remaining);
+  return (line);
 }
 
-static void	read_file(int fd, char *buffer, ssize_t *nb_read)
-{
-	*nb_read = read(fd, buffer, BUFFER_SIZE);
-	if (*nb_read < 0)
-		return ;
-	buffer[*nb_read] = '\0';
+static void read_file(int fd, char *buffer, ssize_t *nb_read) {
+  *nb_read = read(fd, buffer, BUFFER_SIZE);
+  if (*nb_read < 0)
+    return;
+  buffer[*nb_read] = '\0';
 }
 
-static char	*get_the_line(int fd, char *buffer)
-{
-	char	*line;
-	size_t	i;
-	ssize_t	nb_read;
+static char *get_the_line(int fd, char *buffer) {
+  char *line;
+  size_t i;
+  ssize_t nb_read;
 
-	i = 0;
-	nb_read = 0;
-	line = NULL;
-	if (buffer[0] != '\0')
-	{
-		line = build_line(buffer, NULL, &i);
-		if (!line)
-			return (NULL);
-		ft_memcpy(buffer + i + 1, buffer, ft_strlen_with_c(buffer + i, '\0'));
-	}
-	while (detect_newline(line) != 0)
-	{
-		read_file(fd, buffer, &nb_read);
-		if (nb_read < 0)
-			return (free(line), NULL);
-		if (nb_read == 0)
-			break ;
-		line = build_line(buffer, line, &i);
-		ft_memcpy(buffer + i + 1, buffer, ft_strlen_with_c(buffer + i, '\0'));
-	}
-	return (line);
+  i = 0;
+  nb_read = 0;
+  line = NULL;
+  if (buffer[0] != '\0') {
+    line = build_line(buffer, NULL, &i);
+    if (!line)
+      return (NULL);
+    ft_memcpy(buffer, buffer + i + 1, ft_strlen_with_c(buffer + i, '\0'));
+  }
+  while (detect_newline(line) == 0) {
+    read_file(fd, buffer, &nb_read);
+    if (nb_read < 0)
+      return (free(line), NULL);
+    if (nb_read == 0)
+      break;
+    line = build_line(buffer, line, &i);
+    ft_memcpy(buffer, buffer + i + 1, ft_strlen_with_c(buffer + i, '\0'));
+  }
+  return (line);
 }
 
-char	*get_next_line(int fd)
-{
-	static char	buffer[BUFFER_SIZE + 1] = "";
-	char		*line;
+char *get_next_line(int fd) {
+  static char buffer[BUFFER_SIZE + 1] = "";
+  char *line;
 
-	if (fd < 0 || BUFFER_SIZE <= 0)
-		return (NULL);
-	line = get_the_line(fd, buffer);
-	if (!line)
-		return (NULL);
-	return (line);
+  if (fd < 0 || BUFFER_SIZE <= 0)
+    return (NULL);
+  line = get_the_line(fd, buffer);
+  if (!line)
+    return (NULL);
+  return (line);
 }
diff --git a/src/main.c b/src/main.c
index d71e907..b0c7a17 100644
--- a/src/main.c
+++ b/src/main.c
@@ -10,35 +10,32 @@
 /*                                                                            */
 /* ************************************************************************** */
 
-#include <stdio.h>
 #include <fcntl.h>
+#include <stdio.h>
+#include <unistd.h>
 
 #include "../libft/libft.h"
 #include "alcu.h"
 
-int	main(int argc, char* argv[])
-{
-	if (argc != 2)	
-	{
-		ft_putstr_fd("ERROR", 2);
-		return (1);
-	}
+int main(int argc, char *argv[]) {
+  if (argc != 2) {
+    ft_putstr_fd("ERROR", 2);
+    return (1);
+  }
 
-	int fd = open(argv[1], O_RDONLY);
+  int fd = open(argv[1], O_RDONLY);
 
-	if (fd == -1)
-	{
-		ft_putstr_fd("ERROR", 2);
-		return (1);
-	}
+  if (fd == -1) {
+    ft_putstr_fd("ERROR", 2);
+    return (1);
+  }
 
-	int size = check_input(fd);
-	printf("size %d\n", size);
-	if (size < 0)
-	{
-		ft_putstr_fd("ERROR", 2);
-		return (1);
-	}
-	return (0);
+  int size = check_input(fd);
+  printf("size %d\n", size);
+  if (size < 0) {
+    ft_putstr_fd("ERROR", 2);
+    return (1);
+  }
+  return (0);
+  close(fd);
 }
-