procedure push_back var arr array of array of integer const val array

procedure push_back(var arr: array of array of integer; const val: array of integer); 
var len: integer;
  arr2: array of integer;
begin 

  len := Length(arr);
  
  arr2 := new integer[2];
  
  arr2 := val;
  
  SetLength(arr, len + 1);
  
  arr[len]:= arr2;
  
  writeln(arr[len]);
end;