### CONTEXT (Previous Events):
<system_output timestamp="1627.296718">
Reading package lists... 56%
</system_output>
<system_output timestamp="1627.320565">
Reading package lists... 58%

Reading package lists... 58%
</system_output>
<system_output timestamp="1627.45687">
Reading package lists... 96%

Reading package lists... 96%
</system_output>
<system_output timestamp="1627.471587">
Reading package lists... 98%

Reading package lists... 98%
</system_output>
<system_output timestamp="1628.608827">
Reading package lists... 99%

Reading package lists... 99%
</system_output>
<system_output timestamp="1628.639037">... [TRUNCATED TO SAVE SPACE] ...</system_output>
<system_output timestamp="1628.806287">... [TRUNCATED TO SAVE SPACE] ...</system_output>
<system_output timestamp="1628.849574">... [TRUNCATED TO SAVE SPACE] ...</system_output>
<system_output timestamp="1628.850621">... [TRUNCATED TO SAVE SPACE] ...</system_output>
<system_output timestamp="1628.909258">
Building dependency tree... 50%

Building dependency tree... 50%
</system_output>
<system_output timestamp="1629.119313">
Building dependency tree... Done


Reading state information... 0% 

Reading state information... 0%
</system_output>
<system_output timestamp="1629.120253">
Reading state information... Done

</system_output>
<system_output timestamp="1629.157414">41 packages can be upgraded. Run 'apt list --upgradable' to see them.
</system_output>
<system_output timestamp="1629.173452">[?2004h]0;demo@faiserver: /home/fai/config/files/etc/apt/sources.listdemo@faiserver:/home/fai/config/files/etc/apt/sources.list$ </system_output>

### TARGET LINE (Extract and Classify THIS Timestamp):
<user_input timestamp="1668.651603">s</user_input>

Answer: 1668.651603, new event