diff --git a/WarmlyShip/WarmlyShip/FormMapWithSetShip.cs b/WarmlyShip/WarmlyShip/FormMapWithSetShip.cs
index 489e6cd..e821865 100644
--- a/WarmlyShip/WarmlyShip/FormMapWithSetShip.cs
+++ b/WarmlyShip/WarmlyShip/FormMapWithSetShip.cs
@@ -124,7 +124,7 @@ namespace WarmlyShip
 				return;
 			}
 			int pos = Convert.ToInt32(maskedTextBoxPosition.Text);
-			if (_mapsCollection[listBoxMaps.SelectedItem?.ToString() ?? string.Empty] - pos == 1)
+			if (_mapsCollection[listBoxMaps.SelectedItem?.ToString() ?? string.Empty] - pos != null)
 			{
 				MessageBox.Show("Объект удален");
 				pictureBox.Image =
diff --git a/WarmlyShip/WarmlyShip/MapWithSetShipGeneric.cs b/WarmlyShip/WarmlyShip/MapWithSetShipGeneric.cs
index 3efe986..01d1c4c 100644
--- a/WarmlyShip/WarmlyShip/MapWithSetShipGeneric.cs
+++ b/WarmlyShip/WarmlyShip/MapWithSetShipGeneric.cs
@@ -32,7 +32,7 @@ namespace WarmlyShip
 			return map._setShips.Insert(ship);
 		}
 
-		public static int operator -(MapWithSetShipGeneric<T, U> map, int position)
+		public static T operator -(MapWithSetShipGeneric<T, U> map, int position)
 		{
 			return map._setShips.Remove(position);
 		}
diff --git a/WarmlyShip/WarmlyShip/SetShipGeneric.cs b/WarmlyShip/WarmlyShip/SetShipGeneric.cs
index 5be0511..7d336d8 100644
--- a/WarmlyShip/WarmlyShip/SetShipGeneric.cs
+++ b/WarmlyShip/WarmlyShip/SetShipGeneric.cs
@@ -27,15 +27,16 @@ namespace WarmlyShip
 
 		public int Insert(T ship, int position)
 		{
-			if (position < 0 || position > Count || Count == _maxCount) return 0;
+			if (position < 0 || position > Count || Count == _maxCount) return -1;
 			_places.Insert(position, ship);
-			return 1;
+			return position;
 		}
 
-		public int Remove(int position)
+		public T Remove(int position)
 		{
+			T DelElement = _places[position];
 			_places[position] = null;
-			return 1;
+			return DelElement;
 		}
 
 		public T this[int position]