Program z3;
        uses crt;
        var
        n:string;
        t1,t2:text;
        begin
        assign(t1,'c:/olymp/text.in');
        reset(t1);
        read(t1,n);
        close(t1);



        assign(t2,'c:/olymp/text.out');
        rewrite(t2);
        write(t2,n:2) ;
        close(t2);
        end.