Encounter a problem, the requirement to define a function updateR (R (I, t)), will be known array R (I, t) position of the element as a parameter, resulting from the operation function R (I, t + 1),

Such as, known array R:

 R=[[1 1 0 0] 
[0, 1, 0, 1] 
[0 0 5 1] 
[1 1 1 0] 
[1 1 0, 1] 
[1 1 0 0] 
[0, 1, 0, 1] 
[0 0 0 1) 
[1 1 0, 1]] 

Run updateR (R (2, 1]) after value should be R (2, 2], which may, however, when my definition updateR:

 def updateR (R/I, t) : 

Will display a SyntaxError: invalid syntax, probably because I use square brackets in the parameter? Excuse me everybody, this kind of circumstance should be how to solve?