diff --git a/.vs/test(1st chapter)/v15/_BACKUP_600.suo b/.vs/test(1st chapter)/v15/_BACKUP_600.suo
new file mode 100644
index 0000000..d81810d
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diff --git a/.vs/test(1st chapter)/v15/_BASE_600.suo b/.vs/test(1st chapter)/v15/_BASE_600.suo
new file mode 100644
index 0000000..8a85e3e
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diff --git a/.vs/test(1st chapter)/v15/_LOCAL_600.suo b/.vs/test(1st chapter)/v15/_LOCAL_600.suo
new file mode 100644
index 0000000..d81810d
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diff --git a/.vs/test(1st chapter)/v15/_REMOTE_600.suo b/.vs/test(1st chapter)/v15/_REMOTE_600.suo
new file mode 100644
index 0000000..72b37fd
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diff --git a/test(1st chapter)/Program.cs b/test(1st chapter)/Program.cs
index a43cd5c..32e01a4 100644
--- a/test(1st chapter)/Program.cs	
+++ b/test(1st chapter)/Program.cs	
@@ -261,8 +261,12 @@ namespace test_1st_chapter_
             float ff3 = -0.0f;
             float ff4 = -1.0f;
             WriteLine("{0} {1} {2} {3}\n{4}", ff1 / ff2, ff1 / ff3, ff4 / ff2, ff4 / ff3, ff2 / ff2);
+
             WriteLine("line for master");
             WriteLine("line for master2");
+            WriteLine("test line fot t1");
+            WriteLine("test line2 fot t1");
+
 
             ReadKey();
         }
@@ -326,4 +330,4 @@ namespace testfortest
 
         public int dlina() => dlin;
     }
-}
\ No newline at end of file
+}