using System;
using System.Text;
using System.Collections.Generic;
public static class Module1
{
public static void Main()
{
List<string> lst = new List<string>() { "python", "c", "c++", "c#", "java" };
StringBuilder sb = new StringBuilder();
foreach (string s in lst) {
sb.Append(s).Append(" ");
}
Console.WriteLine(sb);
}
}
/*
run:
python c c++ c# java
*/