fn main(){
    let mut x:u32 = 5;
    x += 1;
    for number in 0..x {
        println!("Number = {number}");
    }

    let nlist = [2, 3, 5, 7, 11, 13, 17, 19];
    for number in nlist.iter() {
        println!("nlist Number = {}", number);
    }

    let mut i:u32 = 0;
    while i < 10 {
        i += 1;
        println!("i = {}", i);
    }
//    println!("nlinst Number 100:  {}", nlist[100]);
}