warn "<$input_A> in [@test_input_array]";
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And it shows you have two problems:

< N1> in [] at ./1.pl line 68, <FH> line 4.
No
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You probably don't want to include the space before N1 to the value, and you probably expect the array not to be empty.

To help you with the second problem: check the scope of both the @test_input_array variables. You probably don't need one of them.

($q=q:Sq=~/;[c](.)(.)/;chr(-||-|5+lengthSq)`"S|oS2"`map{chr |+ord
}map{substrSq`S_+|`|}3E|-|`7**2-3:)=~y+S|`+$1,++print+eval$q,q,a,
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