import java.util.ArrayList;
import java.util.List;

public class Solution {
    public int[] removeDuplicates(int[] numbers) {
        int[] tempNumbers = new int[numbers.length];
        int quantityUnique = 0;

        for (int number: numbers){

            boolean alreadyExists = false;

            for (int i=0; i <quantityUnique;i++){
                if (tempNumbers[i] == number){
                    alreadyExists= true;
                    break;
                }
            }

            if(!alreadyExists){
                tempNumbers[quantityUnique] = number;
                quantityUnique++;
            }


        }

        int[] result = new int[quantityUnique];

        for (int i =0; i < quantityUnique;i++){
            result[i]= tempNumbers[i];
        }

        return result;
    }
}