while (currentNode != destination) {
for (unsigned int i = 0; i < currentNode->children.size(); i++) {
if (i % this->num_children_per_node_[currentNode->level - 1] == destination->label[currentNode->level - 1]) {
while (currentNode != destination) {
for (unsigned int i = 0; i < currentNode->children.size(); i++) {
if (i % this->num_children_per_node_[currentNode->level - 1] == destination->label[currentNode->level - 1]) {