use std::io;
use rand::Rng;
pub fn read() -> String {
let mut input = String::new();
io::stdin().read_line(&mut input).expect("Failed to read line");
input.trim().to_string()
}
pub fn randint(start: i32, end: i32) -> i32 {
rand::thread_rng().gen_range(start..=end)
}