Change

$FindMe = <STDIN>;#I also tried multiple types
for ($j=1; $j<27; $j++)#loop to go through Columns
[download]

to

$FindMe = <STDIN>;
chomp ($FindMe);
for ($j=1; $j<27; $j++)#loop to go through Columns
[download]

$FindMe contains the newline character. chomp eliminates the trailing newline.