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 [[package]]
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 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "44d46482f1c1c87acd84dea20c1bf5ebff4c757009ed6bf19cfd36fb10e92c4e"
 dependencies = [
- "proc-macro2 1.0.92",
- "quote 1.0.37",
+ "proc-macro2",
+ "quote",
  "unicode-ident",
 ]
 
@@ -1478,40 +207,12 @@ version = "0.12.16"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "61c41af27dd6d1e27b1b16b489db798443478cef1f06a660c96db617ba5de3b1"
 
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- "svg",
-]
-
 [[package]]
 name = "ulohy"
 version = "0.1.0"
 dependencies = [
  "pyo3",
- "rand 0.8.5",
- "turtle",
+ "rand",
 ]
 
 [[package]]
@@ -1520,260 +221,18 @@ version = "1.0.14"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "adb9e6ca4f869e1180728b7950e35922a7fc6397f7b641499e8f3ef06e50dc83"
 
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-
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 name = "unindent"
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-
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-checksum = "1e96eb4bb472fa43e718e8fa4aef82f86cd9deac9483a1e1529230babdb394a8"
-dependencies = [
- "android_glue",
- "backtrace",
- "bitflags",
- "cocoa",
- "core-foundation",
- "core-graphics",
- "lazy_static",
- "libc",
- "log",
- "objc",
- "parking_lot",
- "percent-encoding",
- "raw-window-handle 0.3.4",
- "smithay-client-toolkit",
- "wayland-client",
- "winapi",
- "x11-dl",
-]
-
-[[package]]
-name = "x11-dl"
-version = "2.21.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "38735924fedd5314a6e548792904ed8c6de6636285cb9fec04d5b1db85c1516f"
-dependencies = [
- "libc",
- "once_cell",
- "pkg-config",
-]
-
-[[package]]
-name = "xdg"
-version = "2.5.2"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "213b7324336b53d2414b2db8537e56544d981803139155afa84f76eeebb7a546"
-
-[[package]]
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-checksum = "af310deaae937e48a26602b730250b4949e125f468f11e6990be3e5304ddd96f"
-
 [[package]]
 name = "zerocopy"
 version = "0.7.35"
@@ -1790,7 +249,7 @@ version = "0.7.35"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "fa4f8080344d4671fb4e831a13ad1e68092748387dfc4f55e356242fae12ce3e"
 dependencies = [
- "proc-macro2 1.0.92",
- "quote 1.0.37",
- "syn 2.0.89",
+ "proc-macro2",
+ "quote",
+ "syn",
 ]
diff --git a/Cargo.toml b/Cargo.toml
index d34a7a5..5fadab1 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -1,12 +1,11 @@
 [package]
 name = "ulohy"
 version = "0.1.0"
-edition = "2024"
+edition = "2021"
 
 [profile.dev.package."*"]
 opt-level = 3
 
 [dependencies]
 pyo3 = { version = "0.23.3", features = ["auto-initialize"] }
-rand = "0.8.5"
-turtle = "1.0.0-rc.3"
+rand = "0.8.5"
\ No newline at end of file
diff --git a/src/u10.rs b/src/u10.rs
index 10a7bae..0fe1c8e 100644
--- a/src/u10.rs
+++ b/src/u10.rs
@@ -8,6 +8,7 @@ pub fn main() {
     println!("{:?}", v);
     
     let mut input = String::new();
+    println!("zadajte cislo");
     std::io::stdin().read_line(&mut input).unwrap();
     let input: f32 = input.trim().parse().unwrap();
     println!("{}", v.iter().position(|x| *x == input).unwrap_or(usize::MAX))
diff --git a/src/u3.rs b/src/u3.rs
index 31671ef..06aef62 100644
--- a/src/u3.rs
+++ b/src/u3.rs
@@ -1,17 +1,21 @@
 pub fn main() {
     let mut input = String::new();
+    println!("Zadajte prirodzene cislo a zaciatok intervalu: ");
     std::io::stdin().read_line(&mut input).unwrap();
     let a: u128 = input
         .trim()
         .parse()
         .expect("Ocakavali sme prirodzene cislo");
     input.clear();
+    println!("Zadajte prirodzene cislo b koniec intervalu: ");
     std::io::stdin().read_line(&mut input).unwrap();
     let b: u128 = input
         .trim()
         .parse()
         .expect("ocakavali sme prirodzene cislo");
     input.clear();
+    
+    println!("Cisla delitelne tromi v intervale od {} do {}", a, b);
 
     devidable(a, b);
 }
diff --git a/src/u4.rs b/src/u4.rs
index 6f9e709..9dcd179 100644
--- a/src/u4.rs
+++ b/src/u4.rs
@@ -6,9 +6,10 @@ Poznámka: Palindróm je slovo, veta, číslo (všeobecne akákoľvek postupnos
 
 pub fn main() {
     let mut input = String::new();
+    println!("zadaj retazec: ");
     std::io::stdin().read_line(&mut input).unwrap();
 
-    println!("{}", palindrome(input.trim().to_string()));
+    println!("je palindrom: {}", palindrome(input.trim().to_string()));
 }
 
 fn palindrome(s: String) -> bool {
diff --git a/src/u5.rs b/src/u5.rs
index bfb8e29..7bdabe8 100644
--- a/src/u5.rs
+++ b/src/u5.rs
@@ -3,12 +3,15 @@ use std::ops::{Add, Sub};
 
 pub fn main() {
     let mut input = String::new();
+    println!("Zadaj cislo a: ");
     std::io::stdin().read_line(&mut input).unwrap();
     let a: i128 = input.trim().parse().unwrap();
     input.clear();
+    println!("Zadaj cislo b: ");
     std::io::stdin().read_line(&mut input).unwrap();
     let b: i128 = input.trim().parse().unwrap();
     input.clear();
+    println!("Zadaj operaciu (+, -, priemer): ");
     std::io::stdin().read_line(&mut input).unwrap();
     let op = input.trim().clone();
 
diff --git a/src/u7.rs b/src/u7.rs
index b23f404..c77f407 100644
--- a/src/u7.rs
+++ b/src/u7.rs
@@ -1,12 +1,14 @@
 pub fn main() {
     let mut input = String::new();
     std::io::stdin().read_line(&mut input).unwrap();
+    println!("Zadaj cislo a zaciatok intervalu: ");
     let a: i128 = input.trim().parse().unwrap();
     input.clear();
+    println!("Zadaj cislo b koniec intervalu: ");
     std::io::stdin().read_line(&mut input).unwrap();
     let b: i128 = input.trim().parse().unwrap();
     input.clear();
-
+    println!("Zadaj operaciu (p, parne, n, neparne): ");
     std::io::stdin().read_line(&mut input).unwrap();
     let op = input.trim();
 
diff --git a/src/u9.rs b/src/u9.rs
index 032e820..e6bc3d4 100644
--- a/src/u9.rs
+++ b/src/u9.rs
@@ -1,5 +1,6 @@
 pub fn main() {
     let mut input = String::new();
+    println!("zadajte retazec");
     std::io::stdin().read_line(&mut input).unwrap();
     //i, í, y, ý, I, Í, Y, Ý
     let input = input