program kyrs;
uses crt;

type
 mas=array[1..15,1..15] of integer;
 vector=array[1..15] of integer;

var
 i,j,n:integer;
 A,B:mas;
 V,V1,V2:vector;

procedure vvod;
 begin
  repeat
   clrscr;
   write('vvedite razmernost massiva ot 5 do 15: ');
   readln(n);
  until (n>=5) and (n<=15);
  for i:=1 to n do
   for j:=1 to n do
    A[i,j]:=-100+random(201);
 end;

procedure vivod(Av:mas);
 var i1,j1:integer;
 begin
  i1:=(n div 2)+1;
  if (n mod 2)=0 then
   j1:=(n div 2)
  else
   j1:=(n div 2)+1;
  for i:=1 to n do
   begin
    for j:=1 to n do
     begin
      if (i<i1) or ((i>i1) and (j<=i-i1)) or
         ((i>=i1) and (j>j1) and (j<n-(i-i1))) then
       textcolor(13) else textcolor(14);
      write(Av[i,j]:5);
     end;
    writeln;
    textcolor(13);
   end;
  Writeln('Press "Enter" to continue...');
  ReadLn;
 end;

procedure obmen(Ao:mas; var Bo:mas);
 var i1,j1:integer;
 begin
  Bo:=Ao;
  i1:=round(n/2);
    for i:=1 to i1 do
      for j:=i1 to n do
      begin
      j1:=Bo[i,j];
      Bo[i,j]:=Bo[n-j+1,n-j+1];
      Bo[n-j+1,n-J+1]:=j1;
      end;
 end;
BEGIN
 clrscr;
 randomize;
 textbackground(9);
 textcolor(13);
 vvod;
 clrscr;
 Writeln('Ishodnaya matritsa:');
 vivod(A);
 obmen(A,B);
 Writeln('Preobrazovannaya matritsa:');
 vivod(B);
 ReadLn;
END.