diff --git a/Configuration/GlobalAssemblyInfo.cs b/Configuration/GlobalAssemblyInfo.cs
index 777519197..c92d5fedb 100644
--- a/Configuration/GlobalAssemblyInfo.cs
+++ b/Configuration/GlobalAssemblyInfo.cs
@@ -15,7 +15,7 @@ internal static class RevisionClass
 	public const string Major = "3";
 	public const string Minor = "8";
 	public const string Build = "3";
-	public const string Revision = "3134";
+	public const string Revision = "3135";
 
         public const string MainVersion = Major + "." + Minor;
 	public const string FullVersion = Major + "." + Minor + "." + Build + "." + Revision;
diff --git a/Configuration/Version.defs b/Configuration/Version.defs
index 4884b82ff..27c828195 100644
--- a/Configuration/Version.defs
+++ b/Configuration/Version.defs
@@ -1,4 +1,4 @@
-%COREVERSION%=3
-%REVISION%=3134
 %MINOR%=8
+%REVISION%=3135
+%COREVERSION%=3
 %MAJOR%=3
diff --git a/Release/pabcversion.txt b/Release/pabcversion.txt
index f50f40f14..508d7429d 100644
--- a/Release/pabcversion.txt
+++ b/Release/pabcversion.txt
@@ -1 +1 @@
-3.8.3.3134
+3.8.3.3135
diff --git a/ReleaseGenerators/PascalABCNET_version.nsh b/ReleaseGenerators/PascalABCNET_version.nsh
index e5f8d7321..1778b2f55 100644
--- a/ReleaseGenerators/PascalABCNET_version.nsh
+++ b/ReleaseGenerators/PascalABCNET_version.nsh
@@ -1 +1 @@
-!define VERSION '3.8.3.3134'
+!define VERSION '3.8.3.3135'
diff --git a/ReleaseGenerators/RebuildStandartModules.pas b/ReleaseGenerators/RebuildStandartModules.pas
index ed831acb3..04fbeb55a 100644
--- a/ReleaseGenerators/RebuildStandartModules.pas
+++ b/ReleaseGenerators/RebuildStandartModules.pas
@@ -15,7 +15,7 @@
    ABCDatabases,PT4Databases,BlockFileOfT,Controls,
    OpenCLABC, OpenCL,
    OpenGLABC, OpenGL,
-   BBCMicroBit, School, SF, TwoPanelsWindow, NUnitABC, PlotWPF, XLSX
+   BBCMicroBit, School, SF, TwoPanelsWindow, NUnitABC, PlotWPF, XLSX, LightPT, Tasks
    ;
    
 begin
diff --git a/ReleaseGenerators/sect_Core.nsh b/ReleaseGenerators/sect_Core.nsh
index a16e2d290..eb3875fc3 100644
--- a/ReleaseGenerators/sect_Core.nsh
+++ b/ReleaseGenerators/sect_Core.nsh
@@ -136,6 +136,8 @@
     File ..\bin\Lib\School.pcu
     File ..\bin\Lib\SF.pcu
     File ..\bin\Lib\Turtle.pcu
+    File ..\bin\Lib\LightPT.pcu
+    File ..\bin\Lib\Tasks.pcu
     File ..\bin\Lib\TwoPanelsWindow.pcu
     File ..\bin\Lib\NUnitABC.pcu
     File ..\bin\Lib\PlotWPF.pcu
@@ -212,6 +214,8 @@
     ${AddFile} "School.pcu"
     ${AddFile} "SF.pcu"
     ${AddFile} "Turtle.pcu"
+    ${AddFile} "LightPT.pcu"
+    ${AddFile} "Tasks.pcu"
     ${AddFile} "TwoPanelsWindow.pcu"
     ${AddFile} "NUnitABC.pcu"
     ${AddFile} "PlotWPF.pcu"
@@ -306,6 +310,8 @@
     File ..\bin\Lib\School.pas
     File ..\bin\Lib\SF.pas
     File ..\bin\Lib\Turtle.pas
+    File ..\bin\Lib\LightPT.pas
+    File ..\bin\Lib\Tasks.pas
     File ..\bin\Lib\TwoPanelsWindow.pas
     File ..\bin\Lib\NUnitABC.pas
     File ..\bin\Lib\PlotWPF.pas
@@ -376,6 +382,8 @@
     ${AddFile} "School.pas"
     ${AddFile} "SF.pas"
     ${AddFile} "Turtle.pas"
+    ${AddFile} "LightPT.pas"
+    ${AddFile} "Tasks.pas"
     ${AddFile} "TwoPanelsWindow.pas"
     ${AddFile} "NUnitABC.pas"
     ${AddFile} "PlotWPF.pas"
diff --git a/bin/Lib/LightPT.pas b/bin/Lib/LightPT.pas
new file mode 100644
index 000000000..a62c27f5c
--- /dev/null
+++ b/bin/Lib/LightPT.pas
@@ -0,0 +1,394 @@
+/// Модуль LightPT автоматической легковесной проверки заданий
+unit LightPT;
+
+uses __RedirectIOMode;
+
+type 
+  PTException = class(Exception) end;
+  InputCountException = class(PTException)
+    Count,n: integer;
+    constructor (Count,n: integer);
+    begin
+      Self.Count := Count;
+      Self.n := n;
+    end;
+  end;
+  InputCount2Exception = class(InputCountException) 
+  end;
+  InputTypeException = class(PTException)
+    n: integer;
+    ExpectedType, InputType: string;
+    constructor (n: integer; ExpectedType, InputType: string);
+    begin
+      Self.n := n;
+      Self.ExpectedType := ExpectedType;
+      Self.InputType := InputType;
+    end;
+  end;
+  TaskStatus = (Completed,NotCompleted,AbsentTask);
+
+var 
+  OutputString := new StringBuilder;
+  OutputList := new List<object>;
+  InputList := new List<object>;
+
+var Cur := 0;
+  
+function TaskName := ExtractFileName(System.Environment.GetCommandLineArgs[0]).Replace('.exe','');
+
+procedure WriteInfoToDatabase(name: string; result: TaskStatus);
+begin
+  try
+    System.IO.File.AppendAllText('db.txt',$'{name} {dateTime.Now.ToString(''u'')} {Result.ToString}'+#10);
+  except
+    on e: Exception do
+      Print(e.Message);
+  end;  
+end;
+
+procedure CheckInputCount(n: integer);
+begin
+  if InputList.Count < n then
+    raise new InputCountException(InputList.Count,n)
+end;
+
+procedure CheckInput2Count(i: integer);
+begin
+  if InputList.Count <= i then
+    raise new InputCount2Exception(InputList.Count,i+1)
+end;
+
+function IsInt(i: integer) := InputList[i] is integer;
+function IsRe(i: integer) := InputList[i] is real;
+function IsStr(i: integer) := InputList[i] is string;
+function IsBoo(i: integer) := InputList[i] is boolean;
+function IsChr(i: integer) := InputList[i] is char;
+
+function Int(i: integer): integer;
+begin
+  CheckInput2Count(i);
+  if not IsInt(i) then
+    raise new InputTypeException(i+1,'integer',TypeName(InputList[i]));
+  Result := integer(InputList[i]);
+end;
+ 
+function Re(i: integer): real;
+begin
+  CheckInput2Count(i);
+  if not IsRe(i) then
+    raise new InputTypeException(i+1,'real',TypeName(InputList[i]));
+  Result := real(InputList[i]);
+end;
+  
+function Str(i: integer): string;
+begin
+  CheckInput2Count(i);
+  if not IsStr(i) then
+    raise new InputTypeException(i+1,'string',TypeName(InputList[i]));
+  Result := string(InputList[i]);
+end;
+  
+function Boo(i: integer): boolean; 
+begin
+  CheckInput2Count(i);
+  if not IsBoo(i) then
+    raise new InputTypeException(i+1,'boolean',TypeName(InputList[i]));
+  Result := boolean(InputList[i]);
+end;
+  
+function Chr(i: integer): char;
+begin
+  CheckInput2Count(i);
+  if not IsChr(i) then
+    raise new InputTypeException(i+1,'char',TypeName(InputList[i]));
+  Result := char(InputList[i]);
+end;
+
+function Int: integer;
+begin
+  Result := Int(Cur);
+  Cur += 1;
+end; 
+  
+function Re: real;
+begin
+  Result := Re(Cur);
+  Cur += 1;
+end; 
+
+function Str: string;
+begin
+  Result := Str(Cur);
+  Cur += 1;
+end; 
+  
+function Boo: boolean;
+begin
+  Result := Boo(Cur);
+  Cur += 1;
+end; 
+  
+function Chr: char;
+begin
+  Result := Chr(Cur);
+  Cur += 1;
+end; 
+
+function Int2: (integer,integer) := (Int,Int);
+function Re2: (real,real) := (Re,Re);
+function IntArr(n: integer): array of integer := (1..n).Select(x->Int).ToArray;
+function ReArr(n: integer): array of real := (1..n).Select(x->Re).ToArray;
+
+function Random(a, b: integer): integer;
+begin
+  Result := PABCSystem.Random(a,b);
+  InputList.Add(Result);
+end;
+
+function Random(a, b: real): real;
+begin
+  Result := PABCSystem.Random(a,b);
+  InputList.Add(Result);
+end;
+
+function Random2(a, b: integer): (integer, integer);
+begin
+  Result := PABCSystem.Random2(a,b);
+  InputList.Add(Result[0]);
+  InputList.Add(Result[1]);
+end;
+  
+function Random2(a, b: real): (real, real);
+begin
+  Result := PABCSystem.Random2(a,b);
+  InputList.Add(Result[0]);
+  InputList.Add(Result[1]);
+end;
+
+function ReadString: string;
+begin
+  Result := PABCSystem.ReadString;
+  InputList.Add(Result);
+end;
+
+function ReadlnString := ReadString;
+function ReadString2 := (ReadString,ReadString);
+function ReadlnString2 := ReadString2;
+
+function ReadInteger(prompt: string): integer;
+begin
+  Result := PABCSystem.ReadInteger(prompt);
+  OutputList.RemoveAt(OutputList.Count-1);
+  OutputList.RemoveAt(OutputList.Count-1);
+end;
+
+function ReadInteger2(prompt: string): (integer,integer);
+begin
+  Result := PABCSystem.ReadInteger2(prompt);
+  OutputList.RemoveAt(OutputList.Count-1);
+  OutputList.RemoveAt(OutputList.Count-1);
+end;
+
+  
+procedure Print(params args: array of object);
+begin
+  foreach var ob in args do
+  begin
+    PABCSystem.Print(ob);
+    OutputList.RemoveAt(OutputList.Count-1)
+  end;
+end;
+
+procedure Println(params args: array of object);
+begin
+  Print(args);
+  Writeln;
+end;
+
+procedure Print(ob: object);
+begin
+  PABCSystem.Print(ob);
+  OutputList.RemoveAt(OutputList.Count-1)
+end;
+
+procedure Print(s: string);
+begin
+  PABCSystem.Print(s);
+  OutputList.RemoveAt(OutputList.Count-1)
+end;
+
+type
+  IOLightSystem = class(__ReadSignalOISystem)
+  public
+    procedure write(obj: object); override;
+    begin
+      inherited write(obj);
+      OutputString += obj.ToString;
+      OutputList += obj;
+    end;
+    procedure writeln; override;
+    begin
+      inherited writeln;
+      OutputString += NewLine;
+    end;
+    procedure read(var x: integer); override;
+    begin
+      inherited Read(x);
+      InputList.Add(x);
+    end;
+    procedure read(var x: real); override;
+    begin
+      inherited Read(x);
+      InputList.Add(x);
+    end;
+    procedure read(var x: char); override;
+    begin
+      inherited Read(x);
+      InputList.Add(x);
+    end;
+    procedure read(var x: string); override;
+    begin
+      inherited Read(x);
+      InputList.Add(x);
+    end;
+    procedure read(var x: byte); override;
+    begin
+      inherited Read(x);
+      InputList.Add(x);
+    end;
+    procedure read(var x: shortint); override;
+    begin
+      inherited Read(x);
+      InputList.Add(x);
+    end;
+    procedure read(var x: smallint); override;
+    begin
+      inherited Read(x);
+      InputList.Add(x);
+    end;
+    procedure read(var x: word); override;
+    begin
+      inherited Read(x);
+      InputList.Add(x);
+    end;
+    procedure read(var x: longword); override;
+    begin
+      inherited Read(x);
+      InputList.Add(x);
+    end;
+    procedure read(var x: int64); override;
+    begin
+      inherited Read(x);
+      InputList.Add(x);
+    end;
+    procedure read(var x: uint64); override;
+    begin
+      inherited Read(x);
+      InputList.Add(x);
+    end;
+    procedure read(var x: single); override;
+    begin
+      inherited Read(x);
+      InputList.Add(x);
+    end;
+    procedure read(var x: boolean); override;
+    begin
+      inherited Read(x);
+      InputList.Add(x);
+    end;
+    procedure read(var x: BigInteger); override;
+    begin
+      inherited Read(x);
+      InputList.Add(x);
+    end;
+  end;
+  
+function CompareElements(o1,o2: Object): boolean;
+begin
+  if (o1 is real) and (o2 is real) then
+  begin
+    var r1 := real(o1);
+    var r2 := real(o2);
+    Result := Abs(r1-r2)<0.0001;
+    exit;
+  end;
+  Result := (o1.GetType = o2.GetType) and o1.Equals(o2);
+end;
+
+function ToObjArray(a: array of integer) := a.Select(x->object(x)).ToArray;
+function ToObjArray(a: array of real) := a.Select(x->object(x)).ToArray;
+function ToObjArray(a: array of string) := a.Select(x->object(x)).ToArray;
+function ToObjArray(a: array of char) := a.Select(x->object(x)).ToArray;
+function ToObjArray(a: array of boolean) := a.Select(x->object(x)).ToArray;
+
+function CompareWithOutput(params a: array of object): TaskStatus;
+begin
+  Result := NotCompleted;
+  if a.Length <> OutputList.Count then
+    exit;
+  Result := if a.Zip(OutputList,(x,y) -> CompareElements(x,y)).All(x->x) 
+              then Completed 
+              else NotCompleted;
+  {Result := Completed;
+  for var i:=0 to a.Length-1 do
+    if not CompareElements(a[i],OutputList[i]) then
+    begin
+      Result := NotCompleted;
+      exit;           
+    end;}
+end;
+
+function CompareSeqWithOutput(a: sequence of integer) := CompareWithOutput(ToObjArray(a.ToArray));
+function CompareSeqWithOutput(a: sequence of real) := CompareWithOutput(ToObjArray(a.ToArray));
+function CompareSeqWithOutput(a: sequence of string) := CompareWithOutput(ToObjArray(a.ToArray));
+function CompareSeqWithOutput(a: sequence of char) := CompareWithOutput(ToObjArray(a.ToArray));
+function CompareSeqWithOutput(a: sequence of boolean) := CompareWithOutput(ToObjArray(a.ToArray));
+
+procedure ClearOutputListFromSpaces;
+begin
+  OutputList := OutputList.Where(s -> (not (s is string)) or ((s as string) <> ' ')).ToList;
+end;
+
+procedure FilterOnlyNumbers;
+begin
+  OutputList := OutputList.Where(x -> (x is integer) or (x is real)).ToList;
+end;
+
+var CheckTask: function(name: string): TaskStatus;
+
+procedure CheckMyPT;
+begin
+ if CheckTask = nil then
+   exit;
+ try 
+  var b := CheckTask(TaskName);
+  case b of
+    Completed: Writeln(#10'Задание выполнено');
+    NotCompleted: Writeln(#10'Задание не выполнено');
+  end;
+ except
+   on e: InputCount2Exception do
+   begin
+     if e.Count = 0 then
+       Writeln(#10+$'Требуется ввести по крайней мере {e.n} значения')
+     else Writeln(#10+$'Введено {e.Count} значения, а требуется ввести по крайней мере {e.n}'); 
+   end;
+   on e: InputCountException do
+   begin
+     if e.Count = 0 then
+       Writeln(#10+$'Требуется ввести {e.n} значения')
+     else Writeln(#10+$'Введено {e.Count} значения, а требуется ввести {e.n}'); 
+   end;
+   on e: InputTypeException do
+   begin
+     Writeln(#10+$'Неверно указан тип при вводе исходных данных'); 
+     Writeln($'При вводе {e.n}-го элемента типа {e.ExpectedType} использована переменная типа {e.InputType}'); 
+   end;
+ end;
+end;  
+  
+initialization
+  CurrentIOSystem := new IOLightSystem;
+finalization
+  CheckMyPT  
+end.
\ No newline at end of file
diff --git a/bin/Lib/Tasks.pas b/bin/Lib/Tasks.pas
new file mode 100644
index 000000000..6f8ec5ec3
--- /dev/null
+++ b/bin/Lib/Tasks.pas
@@ -0,0 +1,15 @@
+// Базовый модуль-заглушка. Переопределяется в каталогах решаемых заданий
+unit Tasks;
+
+uses LightPT;
+
+function CheckTaskT(name: string): TaskStatus;
+begin
+  Result := AbsentTask;
+  WriteInfoToDatabase(name, result);
+end;
+
+initialization
+  CheckTask := CheckTaskT;
+finalization
+end.
\ No newline at end of file