diff --git a/push_swap.h b/push_swap.h
index 3bbbc06..2c4d8cd 100644
--- a/push_swap.h
+++ b/push_swap.h
@@ -6,7 +6,7 @@
 /*   By: dgaillet <dgaillet@student.42.fr>          +#+  +:+       +#+        */
 /*                                                +#+#+#+#+#+   +#+           */
 /*   Created: 2025/12/08 14:18:06 by dgaillet          #+#    #+#             */
-/*   Updated: 2025/12/08 14:23:40 by dgaillet         ###   ########lyon.fr   */
+/*   Updated: 2025/12/08 14:39:22 by dgaillet         ###   ########lyon.fr   */
 /*                                                                            */
 /* ************************************************************************** */
 
@@ -20,4 +20,10 @@ typedef struct s_stack
 	s_stack	*previous;
 }	t_stack;
 
+typedef struct s_stacks
+{
+	t_stack	*a;
+	t_stack	*b;
+}	t_stacks;
+
 #endif
diff --git a/stack_functions/rotate.c b/stack_functions/rotate.c
new file mode 100644
index 0000000..ea412af
--- /dev/null
+++ b/stack_functions/rotate.c
@@ -0,0 +1,35 @@
+/* ************************************************************************** */
+/*                                                                            */
+/*                                                        :::      ::::::::   */
+/*   rotate.c                                           :+:      :+:    :+:   */
+/*                                                    +:+ +:+         +:+     */
+/*   By: dgaillet <dgaillet@student.42.fr>          +#+  +:+       +#+        */
+/*                                                +#+#+#+#+#+   +#+           */
+/*   Created: 2025/12/08 14:32:10 by dgaillet          #+#    #+#             */
+/*   Updated: 2025/12/08 14:42:04 by dgaillet         ###   ########lyon.fr   */
+/*                                                                            */
+/* ************************************************************************** */
+
+#include "push_swap.h"
+
+void	ra(t_stacks *stacks)
+{
+	if (!stacks)
+		return ;
+	if (stacks->a->next)
+		stacks->a = stacks->a->next;
+}
+
+void	rb(t_stacks *stacks)
+{
+	if (!stacks)
+		return ;
+	if (stacks->b->next)
+		stacks->b = stacks->b->next;
+}
+
+void	rr(t_stacks *stacks)
+{
+	ra(stacks);
+	rb(stacks);
+}