perl -c z3.pl 
z3.pl syntax OK

##</code><code>##

perl -c z3.pl 
Global symbol "$i" requires explicit package name at z3.pl line 6.
Global symbol "$input" requires explicit package name at z3.pl line 11.
Global symbol "$input" requires explicit package name at z3.pl line 12.
Global symbol "$fundcode" requires explicit package name at z3.pl line 13.
Global symbol "$input" requires explicit package name at z3.pl line 13.
Global symbol "$fundcode" requires explicit package name at z3.pl line 14.
Global symbol "$input" requires explicit package name at z3.pl line 15.
Global symbol "$input" requires explicit package name at z3.pl line 16.
Global symbol "$input" requires explicit package name at z3.pl line 18.
Global symbol "$input" requires explicit package name at z3.pl line 19.
Global symbol "@in" requires explicit package name at z3.pl line 20.
Global symbol "$input" requires explicit package name at z3.pl line 20.
Global symbol "$i" requires explicit package name at z3.pl line 24.
Global symbol "$final" requires explicit package name at z3.pl line 25.
Global symbol "@in" requires explicit package name at z3.pl line 25.
Global symbol "@in" requires explicit package name at z3.pl line 28.
Global symbol "$fundcode" requires explicit package name at z3.pl line 28.
Global symbol "$fundcode" requires explicit package name at z3.pl line 28.
Global symbol "$i" requires explicit package name at z3.pl line 29.
Global symbol "$fundcode" requires explicit package name at z3.pl line 31.
Global symbol "$fundcode" requires explicit package name at z3.pl line 31.
Global symbol "$fundcode" requires explicit package name at z3.pl line 32.
Global symbol "@in" requires explicit package name at z3.pl line 32.
Global symbol "@in" requires explicit package name at z3.pl line 32.
Global symbol "@in" requires explicit package name at z3.pl line 32.
Global symbol "$outfile" requires explicit package name at z3.pl line 44.
Global symbol "$outfile" requires explicit package name at z3.pl line 45.
Global symbol "$final" requires explicit package name at z3.pl line 46.
Global symbol "$file" requires explicit package name at z3.pl line 52.
Global symbol "$file" requires explicit package name at z3.pl line 54.
Global symbol "$file" requires explicit package name at z3.pl line 54.
z3.pl had compilation errors.