### CONTEXT (Previous Events):
<system_output timestamp="647.829663">Selecting previously unselected package libnsl-dev:i386.
</system_output>
<system_output timestamp="647.83277">Preparing to unpack .../061-libnsl-dev_1.3.0-2_i386.deb ...
</system_output>
<system_output timestamp="647.833446">Unpacking libnsl-dev:i386 (1.3.0-2) ...
</system_output>
<system_output timestamp="647.883057">Selecting previously unselected package rpcsvc-proto.
</system_output>
<system_output timestamp="647.886569">Preparing to unpack .../062-rpcsvc-proto_1.4.3-1_i386.deb ...
</system_output>
<system_output timestamp="647.887074">... [TRUNCATED TO SAVE SPACE] ...</system_output>
<system_output timestamp="647.964">... [TRUNCATED TO SAVE SPACE] ...</system_output>
<system_output timestamp="647.96765">... [TRUNCATED TO SAVE SPACE] ...</system_output>
<system_output timestamp="647.968602">... [TRUNCATED TO SAVE SPACE] ...</system_output>
<system_output timestamp="648.824687">Selecting previously unselected package libisl23:i386.
Preparing to unpack .../064-libisl23_0.25-1.1_i386.deb ...
Unpacking libisl23:i386 (0.25-1.1) ...
</system_output>
<system_output timestamp="649.258644">Selecting previously unselected package libmpfr6:i386.
</system_output>
<system_output timestamp="649.261965">Preparing to unpack .../065-libmpfr6_4.2.0-1_i386.deb ...
</system_output>
<system_output timestamp="649.262825">Unpacking libmpfr6:i386 (4.2.0-1) ...
</system_output>
<system_output timestamp="649.38741">Selecting previously unselected package libmpc3:i386.
</system_output>

### TARGET LINE (Extract and Classify THIS Timestamp):
<system_output timestamp="649.39148">Preparing to unpack .../066-libmpc3_1.3.1-1_i386.deb ...
</system_output>

Answer: 649.39148, old event