How to do an iteration with for loop

Hello everyone. I have a code for doing a decoding iteration. I have problem with looping, and i've attached the .m file. Sorry for bad explanation, but i want the final value of variable, lets say it's

Lj = -41.0644  -5.4258      0     -39.2725     0
         0        0     -40.9465   7.0998      0
         0     -7.0998      0         0     40.9465
     -11.1200        0  -39.2725      0     -5.4258

to be processed again for n times like the commands above it. So it's like the value of Lj is processed again like the value of Lb, which is the top variable of the loop. When i put ii=1:n, its value remain the same. I understand my loop is not really right. What should i fix to make it works? Thank you very much.