import java.util.*;

public class question1 {
    public static void main(String[] args){
        Scanner input = new Scanner(System.in);
        ArrayList<Integer> data = new ArrayList<Integer>();
        System.out.print("Enter list: ");

        int n = input.nextInt();
        for(int i=0;n != 0;i++) {
            data.add(i,n);
            n = input.nextInt();
        }

        System.out.println("size: " + data.size());

        for(int i=0; i< data.size(); i++){
            System.out.println(data.get(i) + " => " + convert(data.get(i)));
        }
    }

    static int convert(int n) {
        // TODO
        return 0;
    }
}