use sha2::{Sha256, Digest};
use hex;

fn encode(input: &[u8]) -> String {
    let mut hasher = Sha256::new();
    hasher.update(input);
    let result = hasher.finalize();
    hex::encode(result)
}

fn main() {
    let input = "1234567";
    let encoded = encode(input.as_bytes());
    println!("Encoded: {}", encoded);
}