added new exercices

Algorithms/IdCard/Name.cs

@@ -0,0 +1,33 @@
+namespace Algorithms.IdCard;
+
+using System;
+
+public class Name
+{
+    private string firstName;
+    private string lastName;
+
+    public Name(string firstName, string lastName)
+    {
+        this.firstName = firstName;
+        this.lastName = lastName;
+    }
+
+    private bool constainsNumber(string word){
+        string digits =  "0123456789";
+        foreach (char digit in digits){
+            if(word.IndexOf(digit) != -1){
+                return true;
+            }
+        }
+        return false;
+    }
+
+    public bool IsValid(){
+        if(constainsNumber(this.firstName) || constainsNumber(this.lastName)){
+            return false;
+        }
+        return this.firstName.Length > 1 && this.lastName.Length > 1;
+    }
+
+}