print ("Version of the runtime: " + Application.unityVersion);

using UnityEngine;
using System.Collections;

public class example : MonoBehaviour {
    void Example() {
        print("Version of the runtime: " + Application.unityVersion);
    }
}

import UnityEngine
import System.Collections

class example(MonoBehaviour):

    def Example():
        print(('Version of the runtime: ' + Application.unityVersion))