some question about ref_rna.py

[guozihang]

Hello, 1ytic! I have a question, could you help me ? thank you !
In this file, https://github.com/1ytic/warp-rna/blob/master/ref_rna.py.
In line 44，why using S not using T, i think T is the length of inputs.
In line 66, I have same question.