Python String Manipulation: Extracting Substring Based on 'L1' Index

The code reads a string input 's'. It then searches for the substring 'L1' in 's' using the 'find()' function and assigns the index of the first occurrence of 'L1' to the variable 't'.

The code then converts the substring of 's' from the start to the index 't' into an integer using the 'int()' function and assigns it to the variable 'L'.

Finally, the code prints the substring of 's' starting from the index 't+1' and ending at index 't+1+L'.