diff --git a/ProjectContainerShip/ProjectContainerShip/CollectionGenericObjects/AbstractCompany.cs b/ProjectContainerShip/ProjectContainerShip/CollectionGenericObjects/AbstractCompany.cs
index 73ad088..4a20e8c 100644
--- a/ProjectContainerShip/ProjectContainerShip/CollectionGenericObjects/AbstractCompany.cs
+++ b/ProjectContainerShip/ProjectContainerShip/CollectionGenericObjects/AbstractCompany.cs
@@ -56,9 +56,9 @@ public abstract class AbstractCompany
     /// <param name="company">Компания</param>
     /// <param name="ship">Добавляемый объект</param>
     /// <returns></returns>
-    public static bool operator +(AbstractCompany company, DrawningShip boat)
+    public static int operator +(AbstractCompany company, DrawningShip boat)
     {
-        return company._collection?.Insert(boat) ?? false;
+        return company._collection?.Insert(boat) ?? -1;
     }
 
     /// <summary>
@@ -67,9 +67,9 @@ public abstract class AbstractCompany
     /// <param name="company">Компания</param>
     /// <param name="position">Номер удаляемого объекта</param>
     /// <returns></returns>
-    public static bool operator -(AbstractCompany company, int position)
+    public static DrawningShip operator -(AbstractCompany company, int position)
     {
-        return company._collection?.Remove(position) ?? false;
+        return company._collection?.Remove(position) ?? null;
     }
 
     /// <summary>