import java.util.*;

class Ideone {
	public static void main (String[] args){
    	String[] array = {"01.um", "02.dois", "03.tres"};
	
		for(int i = 0; i < array.length; i++)
			array[i] = array[i].substring(0, 2);
			
		System.out.println(Arrays.toString(array));
	}
}