Global symbol "$stout" requires explicit package 
name at ./temp.pl line 48.
Global symbol "$stout" requires explicit package 
name at ./temp.pl line 49.
Global symbol "$stout" requires explicit package 
name at ./temp.pl line 71.
Global symbol "$stout" requires explicit package 
name at ./temp.pl line 75.
Execution of ./temp.pl aborted due to compilation errors.