http://take.ms/nRXpe

Mindfuck.java

import java.util.*;

public class Mindfuck {
	public static void main(String[] args) {
		reconstruct("owoztneoer"); //012
		reconstruct("fviefuro"); //45
	}

	public static void reconstruct(String str) {
		String[] numbers = {"zero", "one", "two", "three", "four", "five", "six", "seven", "eight", "nine"};
		int[] matches = new int[10];
	
		for(String s : str.split("")) {
			for(int i = 0; i < numbers.length; i++) {
				if(numbers[i].contains(s)) {
					matches[i]++;
				}
			}
		}
	
		ArrayList<Integer> list = new ArrayList<Integer>();
	
		for(int i = 0; i < matches.length; i++) {
			if(matches[i] > numbers[i].length()) {
				list.add(i);
			}
		}
	
		Collections.sort(list);
	
		for(Integer i : list) {
			System.out.print(i);
		}
		
		System.out.println();
	}
}