uses crt;
var a,b: integer;
procedure swap (var x,y: integer);
var z: integer;
begin
z:=x;x:=y;y:=z;
end;
begin
clrscr;
write('a=b=');readln(a, b);
swap(a,b);
writeln('a=,b=',a, ' ' ,b);
readln;
end.
uses crt;
var a,b: integer;
procedure swap (var x,y: integer);
var z: integer;
begin
z:=x;x:=y;y:=z;
end;
begin
clrscr;
write('a=b=');readln(a, b);
swap(a,b);
writeln('a=,b=',a, ' ' ,b);
readln;
end.