How to get the first character from a string in Rust?

Hi everyone! I recently started learning Rust and encountered what seems like a simple task: I need to get the first character from a string. In Python, I would write `text[0]`, and it works. But in Rust, this approach doesn't work. Here's my code: ```rust fn main() { let greeting = String::from("Привет, мир!"); let first_char = greeting[0]; println!("First character: {}", first_char); } ``` The compiler gives an error: `the type 'String' cannot be indexed by 'usize'`. I understand that strings in Rust are not just arrays of characters, but UTF-8 encoded byte sequences. But how do I get the first character then? The documentation mentions `.chars()` and `.bytes()`, but I'm confused. I need exactly the first grapheme representation (character), not a byte. For example, for the string "Привет