Hi Ivan !
instead of [100, 100] you could write something like:
linear(time, 0, 1, 0, 100)
It converts time from 0 second to 1 second to the position 0 to 100. Feel free to play with the values. Also if you want something a bit smoother, you can change the word “linear” to ease, easeIn or easeOut
Enjoy !