diff --git a/LangS.ypp b/LangS.ypp
index e019009..fe2db59 100644
--- a/LangS.ypp
+++ b/LangS.ypp
@@ -30,7 +30,7 @@ Program *theProg;
 %%
 
 Prog:	Stm ';' Prog	{ theProg->add((Statement *)$1); }
-	| Stm ';'			{ theProg->add((Statement *)$1); }
+	| Stm ';'	{ theProg->add((Statement *)$1); }
 
 Stm:	Exit			{ $$ = new ExitStatement();}
 	| Scalar '=' Value	{ $$ = new AssingmentStatement((Identifier*)$1,(Value*)$3); }
diff --git a/ListVariable.cpp b/ListVariable.cpp
new file mode 100644
index 0000000..4e395cf
--- /dev/null
+++ b/ListVariable.cpp
@@ -0,0 +1,28 @@
+/*
+ * List.cpp
+ *
+ *  Created on: Apr 25, 2013
+ *      Author: jimtahu
+ */
+
+#include "ListVariable.h"
+
+ListVarable::ListVarable(string name):Variable(name) {
+	this->head=NULL;
+}
+
+void ListVarable::add(string value){
+	ListItem *item = new ListItem();
+	item->value=value;
+	item->next=this->head;
+	this->head=item;
+}
+
+ListVarable::~ListVarable() {
+	ListItem *item = this->head;
+	while(this->head != NULL){
+		this->head=item->next;
+		delete item;
+		item=this->head;
+	}//end while list items
+}
diff --git a/ListVariable.h b/ListVariable.h
new file mode 100644
index 0000000..631a72d
--- /dev/null
+++ b/ListVariable.h
@@ -0,0 +1,28 @@
+/*
+ * List.h
+ *
+ *  Created on: Apr 25, 2013
+ *      Author: jimtahu
+ */
+
+#ifndef LIST_H_
+#define LIST_H_
+
+#include "Variable.h"
+
+class ListItem {
+public:
+	string value;
+	ListItem *next;
+public:
+};
+
+class ListVarable: public Variable {
+	ListItem *head;
+public:
+	ListVarable(string name);
+	void add(string value);
+	virtual ~ListVarable();
+};
+
+#endif /* LIST_H_ */
diff --git a/Makefile b/Makefile
index dbbb3db..4462e07 100644
--- a/Makefile
+++ b/Makefile
@@ -6,6 +6,8 @@ SRC= $(wildcard *.cpp)
 OBJ= $(SRC:.cpp=.o) LangS.tab.o LangS.yy.o
 
 
+all: LangS test
+
 LangS: $(OBJ) 
 	$(CXX) -o $@ $^
 
diff --git a/ScalarVariable.cpp b/ScalarVariable.cpp
new file mode 100644
index 0000000..0a65c92
--- /dev/null
+++ b/ScalarVariable.cpp
@@ -0,0 +1,29 @@
+/*
+ * ScalarVariable.cpp
+ *
+ *  Created on: Apr 26, 2013
+ *      Author: jimtahu
+ */
+
+#include "ScalarVariable.h"
+
+ScalarVariable::ScalarVariable(string name):Variable(name){
+	this->Value="";
+}
+
+ScalarVariable::ScalarVariable(ScalarVariable &other):Variable(other){
+	this->Value=other.GetValue();
+}
+
+string ScalarVariable::GetValue(void){
+	return this->Value;
+}
+
+void ScalarVariable::SetValue(string value){
+	this->Value=value;
+}
+
+ScalarVariable::~ScalarVariable() {
+	// TODO Auto-generated destructor stub
+}
+
diff --git a/ScalarVariable.h b/ScalarVariable.h
new file mode 100644
index 0000000..0f906fb
--- /dev/null
+++ b/ScalarVariable.h
@@ -0,0 +1,23 @@
+/*
+ * ScalarVariable.h
+ *
+ *  Created on: Apr 26, 2013
+ *      Author: jimtahu
+ */
+
+#ifndef SCALARVARIABLE_H_
+#define SCALARVARIABLE_H_
+
+#include "Variable.h"
+
+class ScalarVariable: public Variable {
+	string Value;
+public:
+	ScalarVariable(string name);
+	ScalarVariable(ScalarVariable &other);
+	string GetValue();
+	void SetValue(string value);
+	virtual ~ScalarVariable();
+};
+
+#endif /* SCALARVARIABLE_H_ */
diff --git a/Variable.cpp b/Variable.cpp
new file mode 100644
index 0000000..1f6cf8f
--- /dev/null
+++ b/Variable.cpp
@@ -0,0 +1,25 @@
+/*
+ * Variable.cpp
+ *
+ *  Created on: Apr 25, 2013
+ *      Author: jimtahu
+ */
+
+#include "Variable.h"
+
+Variable::Variable(string name){
+	this->Name=name;
+}
+
+Variable::Variable(Variable &other){
+	this->Name=other.GetName();
+}
+
+string Variable::GetName(void){
+	return this->Name;
+}
+
+Variable::~Variable(){
+	// TODO Auto-generated destructor stub
+}
+
diff --git a/Variable.h b/Variable.h
new file mode 100644
index 0000000..37564c6
--- /dev/null
+++ b/Variable.h
@@ -0,0 +1,25 @@
+/*
+ * Variable.h
+ *
+ *  Created on: Apr 25, 2013
+ *      Author: jimtahu
+ */
+
+#ifndef VARIABLE_H_
+#define VARIABLE_H_
+
+#include <string>
+
+using namespace std;
+
+class Variable {
+private:
+	string Name;
+public:
+	Variable(string name);
+	Variable(Variable &other);
+	virtual string GetName();
+	virtual ~Variable();
+};
+
+#endif /* VARIABLE_H_ */