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/*Sursa mea are cea mai mare Va10are :)) */
/*http://oananightshade.files.wordpress.com/2010/08/cocalar-012.jpg*/
#include <fstream>
#include <vector>
#include <bitset>
using namespace std;
const char infile[] = "arbore.in";
const char outfile[] = "arbore.out";
//ifstream fin(infile);
ofstream fout(outfile);
const int MAXN = 100005;
const int MAXSQRT = 330;
const int oo = 0x3f3f3f3f;
typedef vector<int> Graph[MAXN];
typedef vector<int> :: iterator It;
const inline int min(const int &a, const int &b) { if( a > b ) return b; return a; }
const inline int max(const int &a, const int &b) { if( a < b ) return b; return a; }
const inline void Get_min(int &a, const int b) { if( a > b ) a = b; }
const inline void Get_max(int &a, const int b) { if( a < b ) a = b; }
int N, M, First[MAXN], Last[MAXN], Liniarize[MAXN], Ans, K, maxBucket, Array, Left[MAXSQRT], Right[MAXSQRT], sumArray[MAXSQRT], v[MAXN];
Graph G;
bitset <10*MAXN> Hash[MAXSQRT];
class Scanner {
public:
Scanner(string file, int buffer_size = 32768):
buffer_size_(buffer_size) {
file_ = fopen(file.c_str(), "r");
buffer_ = new char[buffer_size];
pointer_ = buffer_ + buffer_size_;
}
Scanner& operator>>(int &object) {
object = 0;
while (next() < '0' or next() > '9')
advance();
while (next() >= '0' and next() <= '9') {
object = object * 10 + next() - '0';
advance();
}
return *this;
}
private:
char next() {
if (pointer_ == buffer_ + buffer_size_) {
pointer_ = buffer_;
fread(buffer_, 1, buffer_size_, file_);
}
return *pointer_;
}
void advance() {
++pointer_;
}
FILE *file_;
int buffer_size_;
char *buffer_, *pointer_;
};
Scanner fin(infile);
void DFs(const int &Node, const int &Father) {
Liniarize[ ++ K] = Node;
First[Node] = K;
for(It it = G[Node].begin(), fin = G[Node].end(); it != fin ; ++ it) {
if(Father == *it)
continue;
DFs(*it, Node);
}
Last[Node] = K;
}
inline void BuildArrays(void) {
for(maxBucket = 1; maxBucket * maxBucket <= N ; ++ maxBucket);
--maxBucket;
for(int i = 1 ; i <= N ; i += maxBucket) {
++ Array;
Left[Array] = i;
Right[Array] = min(i + maxBucket - 1, N);
Hash[Array][0] = 1;
}
}
inline void Update(const int &X, const int &Y, const int &S) {
for(int i = 1 ; i <= Array ; ++ i) {
if(Right[i] < X)
continue;
if(Left[i] > Y)
break;
if(X <= Left[i] && Right[i] <= Y) {/// inclusion
sumArray[i] += S;
continue;
}
for(int j = Left[i] ; j <= Right[i] ; ++ j) {
Hash[i][v[j]] = 0;
v[j] += sumArray[i] + (X <= j && j <= Y ? S : 0);
}
sumArray[i] = 0;
for(int j = Left[i] ; j <= Right[i] ; ++ j)
Hash[i][v[j]] = 1;
}
}
inline int Query(const int &S) {
for(int i = 1 ; i <= Array ; ++ i) {
if(S < sumArray[i])
continue;
if(Hash[i][S - sumArray[i]]) {
for(int j = Left[i] ; j <= Right[i] ; ++ j)
if(sumArray[i] + v[j] == S)
return Liniarize[j];
}
}
return -1;
}
int main() {
fin >> N >> M;
for(int i = 1 ; i != N ; ++ i) {
int x, y;
fin >> x >> y;
G[x].push_back(y);
G[y].push_back(x);
}
DFs(1, 0);
BuildArrays();
for(int i = 1 ; i <= M ; ++ i) {
int q, x, y;
fin >> q;
if(q == 1) {
fin >> x >> y;
Update(First[x], Last[x], y);
}
else {
fin >> x;
fout << Query(x) << '\n';
}
}
return 0;
}