Two things with your file.
First, you copied the output file text which does not work as an input file.
Second, HEC-2 uses spaces and not tabs. You will need to line up the spaces correctly. What I would do is get an example HEC-2 file and copy the spacing. There use to be some old dos programs that would help with checking the spacing, but not easy to find. Dodson and Associates has a window version you can purchase to help with this. I have not used it so not sure how well it works.
http://www.dodson-hydro.com/software/hydropro/hydropro.htm