### CONTEXT (Previous Events):
<system_output timestamp="70.640597">i</system_output>
<user_input timestamp="71.045172">t</user_input>
<system_output timestamp="71.047547">t</system_output>
<user_input timestamp="71.247135"> </user_input>
<system_output timestamp="71.253105"> </system_output>
<user_input timestamp="71.631856">a</user_input>
<system_output timestamp="71.643085">a</system_output>
<user_input timestamp="71.933772">d</user_input>
<system_output timestamp="71.947348">d</system_output>
<user_input timestamp="72.115623">d</user_input>
<system_output timestamp="72.130666">d</system_output>
<user_input timestamp="72.277109"> </user_input>
<system_output timestamp="72.293649"> </system_output>
<user_input timestamp="72.723382">p</user_input>

### TARGET LINE (Extract and Classify THIS Timestamp):
<system_output timestamp="72.743598">p</system_output>

Answer: 72.743598, old event