extern crate flate2;
-use std::io::prelude::*;
-use std::io;
-use flate2::Compression;
-use flate2::write::ZlibEncoder;
use flate2::write::ZlibDecoder;
+use flate2::write::ZlibEncoder;
+use flate2::Compression;
+use std::io;
+use std::io::prelude::*;
// Compress a sample string and print it after transformation.
fn main() {