//Sample05_51.java
class Sample05_51 {
	public static void main(String[] args){
		int i = 0;
		System.out.println(i);//0
		i+=2;
		System.out.println(i);//2
		i+=2;
		System.out.println(i);//4
		i+=2;
		System.out.println(i);//6
		i+=2;
		System.out.println(i);//8
	}
}