void TREEinsert(Tree tree, Item it){
    assert(tree!= NULL);
    if(tree->balanceStrategy == NO_REBALANCE){
        tree->root =  insert(tree->root,it);
    }else if (tree->balanceStrategy == REBALANCE_1){
        tree->root = insert(tree->root, it);
        balance(tree->root);
    }else if (tree->balanceStrategy == REBALANCE_100){
        tree->root = insert(tree->root, it);
        if (tree->root->size % 100 == 0 && tree->root->size != 0){
            balance(tree->root);
        }
    }else if (tree->balanceStrategy == REBALANCE_1000){
        tree->root = insert(tree->root, it);
        if (tree->root->size % 1000 == 0){
            balance(tree->root);
        }
    }else if (tree->balanceStrategy == RANDOMISED){
        tree->root = insertRandom(tree->root, it);
    }else if (tree->balanceStrategy == SPLAY){
        tree->root = insertSplay(tree->root, it);
    }else{
        printf("BALANCE STRATEGY NOT IMPLEMENTED\n");
        exit(1);
    }
}