the first number indicates the number of folds of a polygon (in above example 4- and 6-sided polygon). the number between <> demonstrate the coordination of its vertex of that face.
Now, I wanna to write a code that reads line by line, then specifies faces having two common vertices, and eventually gives an output almost like bellow (which is obtained by the first and third line of previous output):
I'm sorry because I did not specify my question
my question is (how can I just select a bracket?) so that I search it in text.
for example, storing the first bracket of first line : <1,-1,-1>