use ahsah::{Digest, Sha256};
use std::io;
fn main() {
let mut hasher = Sha256::new();
let stdin = io::stdin();
for line in stdin.lines() {
let line = line.expect("Unable to read line from stdin");
hasher.update(line.as_bytes());
}
println!("Hashing {} bytes.", hasher.input_size());
println!("{}", hasher.finalize_hex());
}