How can i solve? I am new

Question

You are an elementary school teacher and explaining multiplication to students.
You are going to use multiplication by 3 as your example.
The program you are given takes N number as input. Write a program to output all numbers from 1 to N, replacing all numbers that are multiples of 3 by "*".

Sample Input
7

Sample Output
12*45*7

Answer 1

That is from C# course. Just go back some lessons, you will find everything you need: for-loop and if-else-statement. For output use Console.Write()

Answer 2

Also learn how to take user input in C#

Answer 3

using System;
using System.Collections.Generic;

namespace SoloLearn
{
class Program
{
static void Main(string[] args)
{
// transform to integer
int number = Convert.ToInt32(Console.ReadLine());

//your code goes here
for(int i = 1; i < number; i++){
if(i % 3 == 0){
Console.WriteLine("*");
}else{
Console.WriteLine(i);
}
}
Console.WriteLine(number);
}
}
}