Select Code to Download

use strict;  
use warnings;  
...
sb1 1.0 142r
another line with 7.17338E+14 in it
the rest of the file

lines before the changed section
4.62399E+09 2.90871E+09
...
sb1 1.0 142r
another line with 7.17338E+14 in it
the rest of the file