// 1. Identify what does this code do
// 2. Fix any issues
// 3. Refactor
public class TestProgram {
public int Main(string[] args) {
var input = "What do I?";
var output = string.Empty;
for(var i=input.Length-1; i > 0; i--) {
output += input.Substring(i, 1);
}
