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protected TreeMap<Integer, Object> initializeSections(Cursor c) 
TreeMap<Integer, Object> sections = new TreeMap<Integer, Object>();
int offset = 0, i = 0;
while (c.moveToNext())
String firstname = c.getString(c.getColumnIndex(CursorSectionDirectoryDatabase.COL_FIRSTNAME));
String firstLetter = firstname.substring(0, 1);
if (!sections.containsValue(firstLetter))
sections.put(offset+i, firstLetter);
return sections;
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