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## inter
### Instructions
5 years ago
Write a program that takes two `string` and displays, without doubles, the characters that appear in both `string`, in the order they appear in the first one.
- The display will be followed by a newline (`'\n'`).
- If the number of arguments is different from 2, the program displays nothing.
### Usage
```console
$ go run . "padinton" "paqefwtdjetyiytjneytjoeyjnejeyj"
padinto
$ go run . ddf6vewg64f twthgdwthdwfteewhrtag6h4ffdhsd
df6ewg4
$
```