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<b>Warning</b>:  session_start(): open(/var/lib/php/sessions/sess_5kn5rvm1hq6daarvbid38odc08, O_RDWR) failed: No space left on device (28) in <b>/var/www/tb-usercake/models/config.php</b> on line <b>51</b><br />
<br />
<b>Warning</b>:  session_start(): Failed to read session data: files (path: /var/lib/php/sessions) in <b>/var/www/tb-usercake/models/config.php</b> on line <b>51</b><br />
static void printUnrolledStringTree(StringTree1 tree) {
  printUnrolledStringTree("", tree);
}

static void printUnrolledStringTree(S prefix, StringTree1 tree) {
  if (tree == null) ret;
  if (tree.leaf) print(prefix);
  for (S s : keys(tree.children))
    printUnrolledStringTree(appendSpaceIfNempty(prefix) + s, tree.children.get(s));
}