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use strict;
use warnings;
...
but they're all based on arrays that you create yourself, rather 
than arrays created by opening a textfile, so I'm not sure how to 
manipulate my array. Any help would be much appreciated.

I[1/6/0] need[1/3/2] to[1/7/7] know how[1/3/15] to[2/7/19] compare ite
+ms within a[1/4/43] string[1/3/45]... I[2/6/55] 
have[1/2/58] dropped a[2/4/71] textfile[1/2/73] into an array[1/2/90],
+ but[1/2/97] now[1/2/101] I[3/6/105] need[2/3/107] to[3/7/112] check[
+1/2/115] 
...
but[2/2/462] they're all based on arrays[2/3/487] that[2/2/494] you cr
+eate yourself, rather 
than arrays[3/3/533] created by opening a[4/4/559] textfile[2/2/561], 
+so[3/3/571] I'm not sure how[3/3/587] to[7/7/591] 
manipulate my[3/3/606] array[2/2/609]. Any[2/2/616] help would be[2/2/
+631] much appreciated.