How does the indices inside the select row block in simulink change the input data

I am trying to understand the command "select row". I inserted in the indices of the select row block [5; 4; 3; 2; 1] which i thought that the output of this block will take the input and flip it based on the indices. for example if the input is [ 1 2 3 4 5] it will change to [5 4 3 2 1]. I used comma, semicolon and still the results did not make since to me. Please take a look and explain to me.