Help for this page

Select Code to Download

Select or download this

open IN, "d1.txt" or die "No such file:$!\n";
open OUT, ">ABC.txt" or die;
...
    }
    
}

Select or download this

(5r)-6-(4-{[2-(3-Iodobenzyl)-3-Oxocyclohex-1-En-1-Yl]Amino}Phenyl)-5-M
+ethyl-4,5-Dihydropyridazin-3(2h)-One

show range error at 2-(