public class Primitive {
	public static void main(String[] args) {
		int a = 1;
		int b = 2;
		
		System.out.println("a: " + a);
		System.out.println("b: " + b);
		
		a = b;
		a = 3;
		System.out.println();
		
		System.out.println("a: " + a);
		System.out.println("b: " + b);
	}
}