MATLAB: Convert Vector into Scalar Simulink

Question

Would it be possible, in Simulink, to read a vector that displays per example [1 2 3] and extract these numbers and put them together as an scalar in the following format: 123 ?

Thank you very much

Answer 1

Demux it you will get 1, 2 and 3, then 1*100+2*20+3=123