Log Parsing

A $log$ is the automatically produced and time$-$stamped documentation of events relevant to a particular system.

You are given a list of $N$ logs in Apache Extended Log File Format $($explained below$).$ Each $log$ is a string containing exactly $150$ characters. You are also given a date$-$time interval $[($start$\_$date, start$\_$time$),($finish$\_$date, finish$\_$time$)].$

Print the number of logs that represent successful requests within the given date$-$time interval.

Example of a $log$ in the specified format:

$172\mathrm{.}126\mathrm{.}12\mathrm{.}39\_$AWAY $10/07/2017$:$19$:$45$:$32]/$bannerad$/$ad$5.$gif$\_$