diff --git a/List.cpp b/List.cpp
new file mode 100644
index 0000000..dddccba
--- /dev/null
+++ b/List.cpp
@@ -0,0 +1,114 @@
+#include "List.hpp"
+
+
+// Components
+// unNode
+components::unNode::unNode() {
+	this->p_next = nullptr;
+	this->value = 0;
+}
+
+
+
+
+// Skeleton
+
+tls::Size strs::Skeleton::get_size() {
+	return this->size;
+}
+
+void strs::Skeleton::pop() {
+	if (this->size == 0) return;
+	else if (this->first_element->p_next == nullptr){
+		delete first_element;	
+		first_element = nullptr;
+	}
+	if (this->first_element->p_next != nullptr){
+	       	components::unNode *tmp = this->first_element->p_next;
+		delete first_element;
+		first_element = tmp;
+	}
+	--(this->size);
+}
+
+
+
+
+
+// unarList 
+strs::unarList::unarList(){
+	this->first_element = nullptr;
+	this->last_element = nullptr;
+	this->size = 0;
+}
+
+void strs::unarList::pop() {
+	if (this->first_element->p_next != nullptr){
+	       	components::unNode *tmp = this->first_element->p_next;
+		delete first_element;
+		first_element = tmp;
+	}
+}
+
+void strs::unarList::remove(){
+	components::unNode *tmp = this->first_element;
+	while (tmp->p_next->p_next != nullptr) tmp = tmp->p_next;
+	tmp->p_next = nullptr;
+	delete last_element;
+	last_element = tmp;
+	--(this->size);
+}
+
+void strs::unarList::term() {
+	components::unNode *iter_node = first_element;
+	for (tls::Index i = 0; i < size; i++){
+	std::cout<< iter_node->value << '\t' << iter_node << "\t point on: " << iter_node->p_next << std::endl;
+		iter_node = iter_node->p_next;
+	}
+	std::cout << "-------------------------------------------------------------" << std::endl;
+}
+
+void strs::unarList::append(tls::Value new_value) {
+	this->last_element->p_next = new components::unNode;
+	this->last_element = this->last_element->p_next;
+	this->last_element->value = new_value;
+	++(this->size);
+}
+
+
+
+
+components::unNode strs::unarList::operator() (tls::Size get_size){
+	size = get_size;
+	components::unNode *iter_node = first_element;
+	for (tls::Index i = 0; i < size-1; i++){
+		iter_node->p_next = new components::unNode;
+		iter_node = iter_node->p_next;
+		iter_node->value = i+1;
+	}
+	last_element = iter_node;
+	return *first_element;
+
+}
+
+components::unNode& strs::unarList::operator[] (tls::Index index){
+	components::unNode *tmp = this->first_element;
+	for (int j = 0; j < index; j++){
+		tmp = tmp->p_next;
+	}
+	return *tmp;
+}
+
+
+
+
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+