public class List {
    private int a[];
    private int n;
    
    public List(int m){
        a = new int[m];
        n = 0;
    }
    
    public void add(int element){
        a[n] = element;
        n++;
    }

    public void sort(){
        int i, j;
        for(i = 0; i < n-1; i++) 
            for(j = i+1; j < n; j++)
                if (a[j] < a[i])  
                    swap(i,j);
    }

    public void swap(int i, int j) {
        int t = a[i];
        a[i] = a[j];
        a[j] = t;
    }
}