#include <stdio.h>
#include <vector>

struct Nod {
	int s = 0;
	std::vector < int > copii;
};

std::vector < Nod > noduri;

int DFS(int nod, int s) {
	int maxVal = -2;
	s -= noduri[nod].s;
	if (s <= 0)
		return nod;
	for (int copil: noduri[nod].copii)
		maxVal = std::max(DFS(copil, s), maxVal);
	return maxVal;
}

int main() {
	FILE * fin, * fout;
	int n, m;
	int q, p, nod, s, i;

	fin = fopen("arbore.in", "r");

	fscanf(fin, "%d%d", & n, & m);
	noduri.resize(n);

	for (i = 0; i < n - 1; i++) {
		fscanf(fin, "%d%d", & p, & nod);
		p--, nod--;
		noduri[p].copii.push_back(nod);
	}

	fout = fopen("arbore.out", "w");

	for (i = 0; i < m; i++) {
		fscanf(fin, "%d", & q);
		if (q == 1) {
			fscanf(fin, "%d%d", & p, & s);
			p--;
			noduri[p].s += s;
		}
		else {
			fscanf(fin, "%d", & s);
			fprintf(fout, "%d\n", DFS(0, s) + 1);
		}
	}
	fclose(fin);
	fclose(fout);
	return 0;
}