class Node {
    char val;
    Node left, right;
}


public void printLevel(Node root, int level) {
    printLevel(root, level, 0);
}

public void printLevel(Node root, int levelToPrint, int currLevel) {
    if (currLevel == levelToPrint) {
        System.out.print(root.val);
    }
    else {
        printLevel(root.left, levelToPrint, currLevel + 1);
        printLevel(root.right, levelToPrint, currLevel + 1);
    }
}