Hello friends can someone tell me how to approach this problem ??
@vijju123 @kaushal101 @mohit_negi @taran_1407 @vivek_1998299 @meooow @john_smith_3
Thanks in advance 
Well, You just need to multiply matrices which can be done in O(N^3) simple matrix multiplication algorithm.
We just need to read the input apart from signs given in input, and print output in specified output format. (Quite messy formats :D)
I didn’t find any accepted solution, (mine is getting RE, don’t know why). I think there might be some error in input/output, the reason of no accepted solutions, because matrix multiplication is a simple concept.
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Yeah I also felt the same . Thanks for your efforts 