Question about ROI definition calculating functional connectivity

Hi. I have a question about usage of DPARSFA. 

I am trying to calculated seed based FC, so I create a sphere ROI with a 4mm radius(I want to use MNI coordinates). 

I clicked the 'Define ROI ' button, enter the contents of (x y z radius  ex) 56 14 26 4) , and pressed the 'Run' button. 

However, in the Command window of Matlab, the sphere ROI center (18 71 50) was different from the coordinates I entered(56 14 26). (attached photo)

Which one is correct and how could I fix it? 

Thank you~