var
f,r:string;
i:integer;
begin
readln(s);
for i:=1 to length(s) do r:=r+s[i]+s[i]+s[i];
writeln(r);
readln;
end.
Вариант 2
var
S: string;
i, n: byte;
begin
Readln(S);
i:=1;
n:=length(S);
while i<(n*3) do
Begin
insert(S[i]+S[i],S,i);
inc(i,3);
End;
Writeln(S);
end.