diff --git a/main.rs b/main.rs
index 08de616..041447b 100755
--- a/main.rs
+++ b/main.rs
@@ -1,76 +1,20 @@
-#![allow(unstable)] // allow unstable libraries
+// don't rust -> restart
 
+#[macro_use] extern crate text_io;
 
-// programm for password generation
+// rust only uses few things by default ('prelude') -> add your needs!
+use std::io; // use io library from the standard library
 
-
-// To-Do:
-// parameters for password options
-// Strength of password (number from parameter)
-// not to complicated character  (| l I ö 0) 
-
-
-// crates
-extern crate rand;
-extern crate getopts;
-
-
-use rand::Rng;
-// use std::__rand::thread_rng;
-use getopts::Options;
-use std::string::String;
-use std::str::FromStr;
-use std::env; // use command line arguments
-
-
-// main function
-fn main() { 
-	// get parameters
-	let args: Vec<String> = env::args().collect();
-	// let program = args[0].clone(); // name of program inside parameters
-
-	let mut opts = Options::new(); // create new options objetct
-    opts.optopt("l", "", "set length of password", "LENGTH");
-    opts.optflag("h", "help", "print this help menu");
-    let matches = match opts.parse(&args[1..]) {
-        Ok(m) => { m } // match
-        Err(f) => { panic!(f.to_string()) }
-    };
-
-
-	// variable for length of password
-	let mut pass_length: i32 = 8;
-	let mut password = String::new(); // assign password as empty string
-	let mut rng = rand::thread_rng(); // instance of thread; rng = random number generator (object)
-	
-	// variable for strength of password
-	let mut score: i32 = 0; // 0 -> no password/very bad password
-	
-	// assign array with (ascii) signs
-	let mut  signs : Vec<char> = vec![];
-	
-	// fill vector with number of ASCII signs allowed for password
-	for i in 33u8..126u8 {
-		signs.push(i as char);
-	}
-	
-	// looping -> creation of password
-	for _ in 0..pass_length {
-		// choose random element from vector signs -> get ASCII signs for number
-		password.push(*(rng.choose(&signs).unwrap())); // * for dereference for processing
-	}
-
-	// length, special character, different characters, non redundance
-	let length = password.len(); // get length of string
-	// println!("length: {}", password.len());
-
-	// we have a password
-	println!("password is: {}", password);
+fn main() {
+	//let n: i32 = read!();
+	//println!("Read in: {}", n);
+	//fib (n);
+	let n: i32 = 1;
+	fib (n);
 }
 
+// Write a function fib which takes a single i32 argument n < 10 and returns n's Fibonacci number (also i32).
 
-// function
-fn print_usage(program: &str, opts: Options) {
-    let brief = format!("Usage: {} FILE [options]", program);
-    print!("{}", opts.usage(&brief));
+fn fib (n:i32) {
+	println!("{} \n", n);
 }
diff --git a/passwordgenerator.rs b/passwordgenerator.rs
index de82de2..1ad08b5 100755
--- a/passwordgenerator.rs
+++ b/passwordgenerator.rs
@@ -12,7 +12,7 @@ use rand::Rng;
 fn main() { 
 
 	// variable for length of password
-	let mut pass_length: i32 = 8;
+	let pass_length: i32 = 8;
 	let mut password = String::new(); // assign password as empty string
 	let mut rng = rand::thread_rng(); // instance of thread; rng = random number generator (object)