using System;
namespace ConsoleApplication_C_Sharp
{
class Program
{
static void Main(string[] args)
{
string s1 = "c# ";
string s2 = "java ";
string s3 = "c++ ";
s1 += Environment.NewLine + s2 + Environment.NewLine + s3;
Console.WriteLine(s1);
}
}
}
/*
run:
c#
java
c++
*/