fn main() {
let text = " hello world ";
let result = text.trim().replace("world", "Ruchy");
let numbers = [1, 2, 3, 4, 5];
let first_val = numbers.first();
let lowered = "LOUD TEXT".to_lowercase();
let processed = lowered.trim();
println!(" hello world ");
println!("{:?}", result);
println!("{:?}", first_val);
println!("{:?}", processed);
}