diff --git a/Controllers/building_four.Controller.cs b/Controllers/building_four.Controller.cs
index 6c128e5..f03f8f3 100644
--- a/Controllers/building_four.Controller.cs
+++ b/Controllers/building_four.Controller.cs
@@ -115,6 +115,51 @@ namespace rmutr_report.Controllers
                     }
                 }
 
+            foreach (var boqPrice in building_fours.basic_information)
+            {
+                string str = boqPrice.list;
+                if (str.Length == 4)
+                {
+                    for (int i = 1; i <= str.Length - 1; i += 4)
+                    {
+                        boqPrice.list = str.Insert(i, ",");
+                    }
+                }
+                else if (str.Length == 5)
+                {
+                    for (int i = 2; i <= str.Length - 1; i += 5)
+                    {
+                        boqPrice.list = str.Insert(i, ",");
+                    }
+                }
+                else if (str.Length == 6)
+                {
+                    for (int i = 3; i <= str.Length - 1; i += 6)
+                    {
+                        boqPrice.list = str.Insert(i, ",");
+                    }
+                }
+                else if (str.Length == 7)
+                {
+                    for (int i = 4; i <= str.Length - 1; i += 7)
+                    {
+                        boqPrice.list = str.Insert(i, ",");
+                    }
+                }
+                else if (str.Length == 8)
+                {
+                    for (int i = 5; i <= str.Length - 1; i += 8)
+                    {
+                        boqPrice.list = str.Insert(i, ",");
+                    }
+
+                    for (int i = 3; i <= str.Length - 1; i += 8)
+                    {
+                        boqPrice.list = str.Insert(i, ",");
+                    }
+                }
+            }
+
             foreach (var boqPrice in building_fours.boq)
             {
                 if (boqPrice.is_data == "1")