in reply to how to access elements in perl

This is not a bioinformatics site, nor a code writing service. Please, try to explain your problem to people who have very limitied knowledge of ACTG. Do you have any code?
لսႽ† ᥲᥒ⚪⟊Ⴙᘓᖇ Ꮅᘓᖇ⎱ Ⴙᥲ𝇋ƙᘓᖇ