#include <iostream>
#include <cstdio>
#include <cmath>
#include <ctime>
#include <cstdlib>
#include <cassert>
#include <vector>
#include <list>
#include <stack>
#include <queue>
#include <deque>
#include <map>
#include <set>
#include <bitset>
#include <string>
#include <algorithm>
#include <utility>
#define llint long long
#define inf 1e18
#define rep(x, s, t) for(llint (x) = (s); (x) < (t); (x)++)
#define Rep(x, s, t) for(llint (x) = (s); (x) <= (t); (x)++)
#define chmin(x, y) (x) = min((x), (y))
#define chmax(x, y) (x) = max((x), (y))

using namespace std;
typedef pair<llint, llint> P;

llint n, m;
llint a[200005], b[200005], k[200005];
llint last[200005], qid[400005], val[400005];
vector<llint> G[400005];
llint l[200005], r[200005], pos[200005];
vector<llint> vec;

void dfs(int v)
{
	if(v > n) l[v-n] = (int)vec.size();
	
	if(last[val[v]] == v) vec.push_back(val[v]);
	else pos[qid[v]] = (int)vec.size();
	
	for(int i = (int)G[v].size()-1; i >= 0; i--) dfs(G[v][i]);
	
	if(v > n) r[v-n] = (int)vec.size()-1;
}

int main(void)
{
	ios::sync_with_stdio(0);
	cin.tie(0);
	
	cin >> n >> m;
	for(int i = 1; i <= m; i++) cin >> a[i] >> b[i] >> k[i];
	
	for(int i = 1; i <= n; i++){
		last[i] = i, val[i] = i;
		if(i > 1) G[i-1].push_back(i);
	}
	
	for(int i = 1; i <= m; i++){
		G[last[b[i]]].push_back(n+i);
		val[n+i] = a[i];
		qid[last[a[i]]] = i;
		last[a[i]] = n+i;
	}
	
	dfs(1);
	
	//for(int i = 0; i < vec.size(); i++) cout << vec[i] << " "; cout << endl;
	//for(int i = 1; i <= m; i++) cout << l[i] << " " << r[i] << " " << pos[i] << endl;
	
	for(int i = 1; i <= m; i++){
		llint q = k[i]-1;
		if(l[i] < pos[i]){
			if(q < l[i]){
				cout << vec[q] << endl;
				continue;
			}
			q -= l[i];
			if(q < pos[i]-r[i]-1){
				cout << vec[r[i]+1 + q] << endl;
				continue;
			}
			q -= pos[i]-r[i]-1;
			if(q < r[i]-l[i]+1){
				cout << vec[l[i]+q] << endl;
				continue;
			}
			cout << vec[k[i]-1] << endl;
		}
		else{
			if(q < pos[i]){
				cout << vec[q] << endl;
				continue;
			}
			q -= pos[i];
			if(q < r[i]-l[i]+1){
				cout << vec[l[i]+q] << endl;
				continue;
			}
			q -= r[i]-l[i]+1;
			if(q < l[i]-pos[i]){
				cout << vec[pos[i] + q] << endl;
				continue;
			}
			cout << vec[k[i]-1] << endl;
		}
	}
	
	return 0;
}