diff --git a/.#main.adb# b/.#main.adb#
deleted file mode 100644
index 0706e48..0000000
--- a/.#main.adb#
+++ /dev/null
@@ -1,10 +0,0 @@
-with ComplexCalculator;
-with Ada.Text_IO;
-
-procedure Main is
-begin
-   -- Your program logic goes here
-
-   -- Example: Display a message
-   Ada.Text_IO.Put_Line("Hello, Ada!");
-end Main;
diff --git a/default.gpr b/default.gpr
new file mode 100644
index 0000000..70ec7cf
--- /dev/null
+++ b/default.gpr
@@ -0,0 +1,7 @@
+project Default is
+
+   package Compiler is
+      for Switches ("Ada") use ("-g", "-O2");
+   end Compiler;
+
+end Default;
diff --git a/main.adb b/main.adb
index ad7b41b..8982d42 100644
--- a/main.adb
+++ b/main.adb
@@ -1,22 +1,30 @@
 with ComplexCalculator;
 with Ada.Text_IO;
 
-procedure main is
-   FirstInput : String(1..100);
-   SecondInput : String(1.100);
+procedure Main is
+   FirstInput : String(1..10);
+   SecondInput : String(1..10);
+   Last_Position : Natural; -- Variable to hold the last position
 
 begin
-   
    -- Your program logic goes here
    Ada.Text_IO.Put("Specify first imaginary number: ");
    
-   -- Read the user's input and store it in the UserInput variable.
-   Ada.Text_IO.Get_Line(UserInput);
+   -- Read the user's input for the first number and store it in FirstInput.
+   Ada.Text_IO.Get_Line(FirstInput, Last => Last_Position);
    
-   -- Display the user's input.
-   Ada.Text_IO.Put_Line("You entered: " & UserInput);
+   Ada.Text_IO.Skip_Line;
+   -- Display the user's input for the first number.
+   Ada.Text_IO.Put_Line("You entered: " & FirstInput);
 
+   Ada.Text_IO.Put("Specify second imaginary number: ");
+   
+   -- Read the user's input for the second number and store it in SecondInput.
+   Ada.Text_IO.Get_Line(SecondInput, Last => Last_Position);
+   
+   -- Display the user's input for the second number.
+   Ada.Text_IO.Put_Line("You entered: " & SecondInput);
 
    -- Example: Display a message
    Ada.Text_IO.Put_Line("Hello, Ada!");
-end main;
+end Main;
diff --git a/main.ali b/main.ali
index 2de3d57..5530ac2 100644
--- a/main.ali
+++ b/main.ali
@@ -1,17 +1,17 @@
 V "GNAT Lib v2021"
 M P W=b
-A -mtune=generic
-A -march=x86-64
 P ZX
 
 RN
 RV NO_IO
+RV NO_DYNAMIC_SIZED_OBJECTS
 
-U main%b		main.adb		6afd184e NE OO SU IL
+U main%b		main.adb		0b89c4d6 NE OO SU
 W ada%s			ada.ads			ada.ali
 Z ada.strings.text_buffers%s  a-sttebu.adb	a-sttebu.ali
 W ada.text_io%s		a-textio.adb		a-textio.ali
 W complexcalculator%s	complexcalculator.adb	complexcalculator.ali
+Z system.concat_2%s	s-conca2.adb		s-conca2.ali
 
 D ada.ads		20210520051132 76789da1 ada%s
 D a-except.ads		20210520051128 946f3014 ada.exceptions%s
@@ -26,8 +26,9 @@ D a-unccon.ads		20210520051130 0e9b276f ada.unchecked_conversion%s
 D complexcalculator.ads	20231024191420 1e56cc72 complexcalculator%s
 D interfac.ads		20210520051132 edec285f interfaces%s
 D i-cstrea.ads		20210520051132 e53d8b8e interfaces.c_streams%s
-D main.adb		20231024191028 da5f0151 main%b
+D main.adb		20231025152734 bb2bddc9 main%b
 D system.ads		20210520051136 2ffa5114 system%s
+D s-conca2.ads		20210520051132 02a0d7d0 system.concat_2%s
 D s-crtl.ads		20210520051132 0ebbdb71 system.crtl%s
 D s-exctab.ads		20210520051132 54135002 system.exception_table%s
 D s-ficobl.ads		20210520051132 078245e4 system.file_control_block%s
@@ -46,12 +47,19 @@ D unchconv.ads		20210520051136 ca2f9e18 unchecked_conversion%s
 G a e
 G c Z b b [main standard 4 11 none]
 X 1 ada.ads
-16K9*Ada 20e8 14|2r6 9r4
+16K9*Ada 20e8 14|2r6 11r4 14r4 16r4 18r4 20r4 23r4 26r4 29r4
 X 9 a-textio.ads
-58K13*Text_IO 725e16 14|2w10 9r8
-506U14*Put_Line 14|9s16
+58K13*Text_IO 725e16 14|2w10 11r8 14r8 16r8 18r8 20r8 23r8 26r8 29r8
+271U14*Skip_Line 14|16s16
+463U14*Put 14|11s16 20s16
+479U14*Get_Line 14|14s16 23s16
+481i7 Last{natural} 14|14r37 23r38
+506U14*Put_Line 14|18s16 26s16 29s16
 X 11 complexcalculator.ads
 1K9*ComplexCalculator 16e22 14|1w6
 X 14 main.adb
-4U11*main 4b11 10l5 10t9
+4U11*Main 4b11 30l5 30t9
+5a4 FirstInput{string} 14m25 18r43
+6a4 SecondInput{string} 23m25 26r43
+7i4 Last_Position{natural} 14m45 23m46
 
diff --git a/main.exe b/main.exe
index 432ee82..9fbb1fb 100644
Binary files a/main.exe and b/main.exe differ
diff --git a/main.o b/main.o
index e1f2e9c..d6158a6 100644
Binary files a/main.o and b/main.o differ