### CONTEXT (Previous Events):
<system_output timestamp="1598.70833">Selecting previously unselected package libitm1:i386.
</system_output>
<system_output timestamp="1598.711484">Preparing to unpack .../051-libitm1_12.2.0-14_i386.deb ...
</system_output>
<system_output timestamp="1598.712125">Unpacking libitm1:i386 (12.2.0-14) ...
</system_output>
<system_output timestamp="1598.741836">Selecting previously unselected package libatomic1:i386.
</system_output>
<system_output timestamp="1598.744804">Preparing to unpack .../052-libatomic1_12.2.0-14_i386.deb ...
</system_output>
<system_output timestamp="1598.745315">... [TRUNCATED TO SAVE SPACE] ...</system_output>
<system_output timestamp="1598.774152">... [TRUNCATED TO SAVE SPACE] ...</system_output>
<system_output timestamp="1598.777564">... [TRUNCATED TO SAVE SPACE] ...</system_output>
<system_output timestamp="1598.777874">... [TRUNCATED TO SAVE SPACE] ...</system_output>
<system_output timestamp="1599.558549">Selecting previously unselected package libubsan1:i386.
</system_output>
<system_output timestamp="1599.561122">Preparing to unpack .../054-libubsan1_12.2.0-14_i386.deb ...
</system_output>
<system_output timestamp="1599.563897">Unpacking libubsan1:i386 (12.2.0-14) ...
</system_output>
<system_output timestamp="1599.800066">Selecting previously unselected package libquadmath0:i386.
</system_output>
<system_output timestamp="1599.80347">Preparing to unpack .../055-libquadmath0_12.2.0-14_i386.deb ...
</system_output>

### TARGET LINE (Extract and Classify THIS Timestamp):
<system_output timestamp="1599.804016">Unpacking libquadmath0:i386 (12.2.0-14) ...
</system_output>

Answer: 1599.804016, old event