Bot program to count the products bought in the supermarket, with total sum.

fn main() {
    let mut sum = 0;
    for i in 0..5 {
        let mut input = String::new();

        println!("Enter a number to add to the sum: ");

        std::io::stdin()
            .read_line(&mut input)
            .expect("Failed to read line");

        let trimmed = input.trim();
        match trimmed.parse::<u32>() {
            Ok(i) => sum += i,
            Err(..) => println!("this was not an integer: {}", trimmed),
        };
    }
    println!("The sum is: {}", sum);
}