using System;
using System.Linq;
class Program
{
static void Main() {
var array = new string[] { "java", "c", "c sharp", "c++", "python", "javascript" };
var result = array.Where(word => word.Contains('a'));
foreach (var word in result) {
Console.WriteLine(word);
}
}
}
/*
run:
java
c sharp
javascript
*/