#include <iostream>
#include <fstream>
#include <stack>
#include <algorithm>
#include <string>
#include <queue>
#include <vector>
#include <map>

#define MAX 100005
#define VALMIN ((1 << 29) - 1) * -1;

using namespace std;

ifstream fin("arbint.in");
ofstream fout("arbint.out");

void constructTree(int* v, int* tree, int low, int high, int poz) {

	if (low == high) {
		tree[poz] = v[low];
		return;
	}

	int mid = (low + high) / 2;

	constructTree(v, tree, low, mid, poz * 2 + 1);
	constructTree(v, tree, mid + 1, high, poz * 2 + 2);

	tree[poz] = max(tree[poz * 2 + 1], tree[poz * 2 + 2]);
}

int Query(int* tree, int low, int high, int qLow, int qHigh, int poz) {

	if (low >= qLow && high <= qHigh)   // total overlap
		return tree[poz];
	if (qLow > high || qHigh < low)     // no overlap
		return VALMIN;

	int mid = (low + high) / 2;

	int t1 = Query(tree, low, mid, qLow, qHigh, poz * 2 + 1);
	int t2 = Query(tree, mid + 1, high, qLow, qHigh, poz * 2 + 2);

	//fout << t1 << " " << t2 << "\n";
	return max(t1, t2);
}

void Update(int* tree, int low, int high, int poz, int a, int b) {

	if (low == high) {
		tree[poz] = b;
		return;
	}

	int mid = (low + high) / 2;

	if (a <= mid)
		Update(tree, low, mid, poz * 2 + 1, a, b);
	else
		Update(tree, mid + 1, high, poz * 2 + 2, a, b);

	tree[poz] = max(tree[poz * 2 + 1], tree[poz * 2 + 2]);
}

int v[MAX];
int tree[4 * MAX];

int main() {
	int N, M;

	fin >> N >> M;

	for (int i = 1; i <= N; ++i)
		fin >> v[i];

	for (int i = 0; i <= 4 * N; ++i)
		tree[i] = VALMIN;

	constructTree(v, tree, 1, N, 0);

	int tip, a, b;
	for (int i = 0; i < M; ++i) {
		fin >> tip >> a >> b;

		if (tip == 0)
			fout << Query(tree, 1, N, a, b, 0) << "\n";
		else
			Update(tree, 1, N, 0, a, b);
	}
	fout << "\n";
	for (int i = 0; i < 10; ++i)
		fout << tree[i] << " ";

	return 0;
}