Check out example codes for "generate random number c#". It will help you in understanding the concepts better.
Code Example 1
//works in visual studio for unity
int randomNumber = UnityEngine.Random.Range(1, 100); //Random number between 1 and 99
Code Example 2
Random rnd = new Random();
int month = rnd.Next(1, 13); // creates a number between 1 and 12
int dice = rnd.Next(1, 7); // creates a number between 1 and 6
int card = rnd.Next(52); // creates a number between 0 and 51
Code Example 3
Random rnd = new Random();
int value = rnd.Next(min,max);
Console.Write(value);
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