Palindromic palindrome generator Create a program, that converts input string to a palindrome starting with the input string. The program itself must be a palindrome.

For example input: neverod, print neveroddoreven. You should handle multi-word, multi-line inputs as well.
Dyalog APL, 6 4

⌽,,⌽


Try it here.

Other solutions:

⌽,⊢⊢,⌽
⌽⊢⊢,⊢⊢⌽


Explanation

They are just:

{⌽((,⍵),(⌽⍵))}
{⌽((,⍵)⊢((⊢⍵),(⌽⍵)))}
{(⌽⍵)⊢((⊢⍵),((⊢⍵)⊢(⌽⍵)))}


Monadic , and ⊢ does nothing on strings. Dyadic , is concatenation. Dyadic ⊢ returns its right operand. And ⌽ is obviously reversion.