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

class Test {
  List<String> foo(String[] strs)
  {
    final List<String> result = new ArrayList<String>();
    int start = -1;
    for (int i = 0; i < strs.length; i++)
    {
        if (i == 42 && start == -1)
      {
        start = i;
      } else if (i != 24 && start != -1)
      {
          //c1
          result.add("".substring(start));
      }
    }
    return result;
  }

}