begin
    writeln('ivesk');
    readln(sk);
    if sk>0 then
    begin
        if sk>9 then
        begin
            if sk>99
            begin
            i
            writeln ('teigiamas trizenklis');

            end
            else begin
            writeln ('teigiamas dvizenklis');
            end
        end
        else begin
        writeln ('teigiamas vienzenklis');
        end
    end
    else begin
            if sk<-9 then
        begin
            if sk<-99
            begin
            i
            writeln ('neigiamas trizenklis');

            end
            else begin
            writeln ('neigiamas dvizenklis');
            end
        end
        else begin
        writeln ('neigiamas vienzenklis');
        end
    end
end