encoded = encoded + String.valueOf( (char) current2 );

public class Rot13 
{
	public static void main(String[] args) 
	{
		String encoded = "";
		String str = args[0];
 
		// just to make things easy, converting input string to lowercase
		str = str.toLowerCase();
		int temp=0;
		for (int i=0;i<str.length() ;i++ )
		{
			temp = str.charAt(i);
			temp = temp+13;
			
			// if the value goes beyond 'z' it should start counting from 'a' again.
			if (temp > 122)
			{
				temp = (temp - 122) + 96;
			}
			
			// converting int back to char representation
			encoded = encoded + ((char)temp);
			temp = 0;
		}
		
		System.out.println(encoded);
	}
}