diff --git a/obj/Debug/net6.0/lpr381.csproj.CoreCompileInputs.cache b/obj/Debug/net6.0/lpr381.csproj.CoreCompileInputs.cache
index 321c7a4..5c08ff5 100644
--- a/obj/Debug/net6.0/lpr381.csproj.CoreCompileInputs.cache
+++ b/obj/Debug/net6.0/lpr381.csproj.CoreCompileInputs.cache
@@ -1 +1 @@
-fcff68d6d49c0113e7e1149aaa08f33487aa1927
+2378da97a7cf4743291d214cf9ba5b9a5bd52a98
diff --git a/obj/Debug/net6.0/lpr381.dll b/obj/Debug/net6.0/lpr381.dll
index 6fc1876..08f62bf 100644
Binary files a/obj/Debug/net6.0/lpr381.dll and b/obj/Debug/net6.0/lpr381.dll differ
diff --git a/obj/Debug/net6.0/lpr381.pdb b/obj/Debug/net6.0/lpr381.pdb
index 470ebd0..bbd0735 100644
Binary files a/obj/Debug/net6.0/lpr381.pdb and b/obj/Debug/net6.0/lpr381.pdb differ
diff --git a/obj/Debug/net6.0/ref/lpr381.dll b/obj/Debug/net6.0/ref/lpr381.dll
index 93ced73..90c4238 100644
Binary files a/obj/Debug/net6.0/ref/lpr381.dll and b/obj/Debug/net6.0/ref/lpr381.dll differ
diff --git a/twoPhaseSimplex.cs b/twoPhaseSimplex.cs
new file mode 100644
index 0000000..3f640d4
--- /dev/null
+++ b/twoPhaseSimplex.cs
@@ -0,0 +1,168 @@
+using ConsoleTables;
+class twoPhaseSimplex
+{
+    public void twoPhaseSimplexAlgo()
+    {
+        file file = new file();
+        Tuple<List<zConstraints>, List<Constraints>> content = file.readFile();
+        List<zConstraints> zConstraintsList = content.Item1;
+        List<Constraints> constraintsList = content.Item2;
+
+        // print constraintsList
+        foreach (zConstraints constraints in zConstraintsList)
+        {
+            Console.WriteLine(constraints.minMax + " " + string.Join(" ", constraints.values));
+        }
+        foreach (Constraints constraints in constraintsList)
+        {
+            Console.WriteLine(constraints.sign + " " + string.Join(" ", constraints.values));
+        }
+        List<List<float>> table = new List<List<float>>();
+        table.Add(zConstraintsList[0].values);
+        // add all constraints in constraintsList to table
+        foreach (Constraints constraints in constraintsList)
+        {
+            table.Add(constraints.values);
+        }
+        List<List<float>> newTable = new List<List<float>>();
+        // add all rows in table to newTable
+        foreach (List<float> row in table)
+        {
+            // add all columns in row to newTable without reference to table
+            List<float> newRow = new List<float>();
+            for (int i = 0; i < row.Count; i++)
+            {
+                newRow.Add(row[i]);
+
+            }
+            newTable.Add(newRow);
+        } 
+        int varCount = newTable[0].Count;
+        table = prepareTable(newTable, constraintsList);
+
+        // print table
+        printTable(table, varCount);
+
+    }
+
+    void printTable(List<List<float>> table, int varCount)
+    {
+        string[] headers = new string[table[0].Count];
+        for (int i = 0; i < table[0].Count; i++)
+        {
+            if (i < varCount)
+            {
+                headers[i] = "x" + (i + 1);
+            }
+            else if (i < table[0].Count - 1)
+            {
+                headers[i] = "e" + (i - varCount + 1);
+                headers[i+1] = "a" + (i - varCount + 1);
+                headers[i+2] = "s" + (i - varCount + 1);
+                i = i + 2;
+            }
+            else
+            {
+                headers[i] = "rhs";
+            }
+        }
+        var conTable = new ConsoleTable(headers);
+        foreach (List<float> row in table)
+        {
+            // convert row to object array
+            object[] rowArray = new object[row.Count];
+            for (int i = 0; i < row.Count; i++)
+            {
+                rowArray[i] = row[i];
+            }
+            conTable.AddRow(rowArray);
+        }
+        conTable.Write(Format.Alternative);
+        
+    }
+
+    List<List<float>> prepareTable(List<List<float>> table, List<Constraints> constraints)
+    {
+        // save all values in table in to newTable
+        List<List<float>> newTable = new List<List<float>>();
+        foreach (List<float> row in table)
+        {
+            List<float> newRow = new List<float>();
+            foreach (float value in row)
+            {
+                newRow.Add(value);
+            }
+            newTable.Add(newRow);
+        }
+        List<string> signs = new List<string>();
+        foreach (Constraints constraint in constraints)
+        {
+            signs.Add(constraint.sign);    
+        }
+        for (int i = 0; i < signs.Count ; i++)
+        {
+            table[0].Add(0);
+            table[0].Add(0);
+            table[0].Add(0);
+            // add 3 0s to each row for every column in table
+            for (int j = 0; j < newTable[i+1].Count-1; j++)
+            {
+                if (signs[i] == ">=")
+                {
+                    if (i == j)
+                    {
+                        table[i+1].Add(0);
+                        table[i+1].Add(0);
+                        table[i+1].Add(1);
+                    }
+                    else
+                    {
+                        table[i+1].Add(0);
+                        table[i+1].Add(0);
+                        table[i+1].Add(0);
+                    }
+                }
+                else if (signs[i] == "<=")
+                {
+                    if (i == j)
+                    {
+                        table[i+1].Add(1);
+                        table[i+1].Add(1);
+                        table[i+1].Add(0);
+                    }
+                    else
+                    {
+                        table[i+1].Add(0);
+                        table[i+1].Add(0);
+                        table[i+1].Add(0);
+                    }
+                }
+                else if (signs[i] == "=")
+                {
+                    if (i == j)
+                    {
+                        table[i+1].Add(0);
+                        table[i+1].Add(1);
+                        table[i+1].Add(0);
+                    }
+                    else
+                    {
+                        table[i+1].Add(0);
+                        table[i+1].Add(0);
+                        table[i+1].Add(0);
+                    }
+                }
+            }
+        }
+        table[0].Add(0);
+        // remove intex newTable.Count-1 from table and place it in the back of table
+        for (int i = 1; i < table.Count; i++)
+        {
+            table[i].RemoveAt(newTable.Count-1);
+            table[i].Add(newTable[i][newTable.Count-1]);
+
+        }
+        
+        return table;
+    }
+}
\ No newline at end of file