$ cargo run
   Compiling loops v0.1.0 (file:///projects/loops)
    Finished dev [unoptimized + debuginfo] target(s) in 0.32s
     Running `target/debug/loops`
ta wartość to: 10
ta wartość to: 20
ta wartość to: 30
ta wartość to: 40
ta wartość to: 50
