Usage of the LSTM

[robinjungers]

Hi,
I'm very new to LSTMs and I'm quite confused about how to make use of them.
What do the random input values mean here, when you're teaching it the small y_list sequence ?
I ported the code in C++ and I would basically like to teach it how to speak, after reading some text at the character-level (as discussed here). My purpose is to understand what my input values and y_list should be.
Thanks a lot.