{ PROCEDURA VYMENA.PAS                        Copyright (c) ghostix }
{ Nacita 3 cisla a potom pomocou procedur ich vymeni medzi sebou.   }
{                                                                   }
{ Author: Ghostix                                                   }
{ Date  : 22.11.2007                           http://www.trsek.com }

program zamena;
uses crt;
var a,b,c:integer;

procedure hodnoty;
begin
  writeln('Zadajte hodnotu A');
  readln(a);
  writeln('Zadajte hodnotu B');
  readln(b);
  writeln('Zadajte hodnotu C');
  readln(c);
  writeln('A=',a,' B=',b,' C=',c);
end;

procedure vymenaab;
begin
  writeln('Vymena A za B');
  writeln('A=',b);
  writeln;
end;

procedure vymenaac;
begin
  writeln('Vymena A za c');
  writeln('A=',c);
  writeln;
end;

procedure vymenaba;
begin
  writeln('Vymena B za A');
  writeln('B=',a);
  writeln;
end;

procedure vymenabc;
begin
  writeln('Vymena B za C');
  writeln('B=',c);
  writeln;
end;

procedure vymenaca;
begin
  writeln('Vymena C za A');
  writeln('C=',a);
  writeln;
end;

procedure vymenacb;
begin
  writeln('Vymena C za B');
  writeln('C=',b);
  writeln;
end;

begin
  hodnoty;
  vymenaab;
  vymenaac;
  vymenaba;
  vymenabc;
  vymenaca;
  vymenacb;
  readln;
end.