program PascalGuru;
uses crt;
label 1;
var
s: string;
i: integer;
begin
write('Vvedite stroku [massiv simvolov]: ');
readln(s);
1:
for i := 2 to length(s) do
if s[i - 1] = s[i] then
begin
delete(s, i, 1);
goto 1;
end;
writeln('Rezulitat: ', s);
readln;
end.