#include <bits/stdc++.h>
using namespace std;

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

int n, m, col_max;
int len[65];
vector<int> L[65];
int culoare[100003];

void Citire()
{
    int i, x, color;
    fin >> n >> m;
    for (i = 1; i <= n; i++)
    {
        fin >> x >> color;
        L[color].push_back(x);
        col_max = max(col_max, color);
    }
}

int CB_main(int x, int C)
{
    int st, dr, mij;
    st = 0; dr = L[C].size() - 1;
    while (st <= dr)
    {
        mij = (st + dr) / 2;
        if (x == L[C][mij]) return mij;
        else if (x > L[C][mij]) st = mij + 1;
        else dr = mij - 1;
    }
    return -1;
}

void IterareCulori(int x, int y)
{
    int i, pos;
    for (i = 1; i <= col_max; i++)
    {
        pos = CB_main(x, i);
        // elementul de pe pozitia x apartine vectorului de culoare y
        if (pos != -1)
        {
            L[i][pos] = x + y;
            return;
        }
    }
}

int CB_dreapta(int x, int C)
{
    int st, dr, mij, p = -1;
    st = 0; dr = L[C].size() - 1;
    while (st <= dr)
    {
        mij = (st + dr) / 2;
        if (L[C][mij] <= x)
        {
            p = mij;
            st = mij + 1;
        }
        else dr = mij - 1;
    }
    return p;
}

int CB_stanga(int x, int C)
{
    int st, dr, mij, p = -1;
    st = 0; dr = L[C].size() - 1;
    while (st <= dr)
    {
        mij = (st + dr) / 2;
        if (L[C][mij] >= x)
        {
            p = mij;
            dr = mij - 1;
        }
        else st = mij + 1;
    }
    return p;
}

int IntervalCuloareMaxima(int x, int y)
{
    int i, st, dr, nr, cnt = 0;
    for (i = 1; i <= col_max; i++)
    {
        st = CB_dreapta(y, i);
        dr = CB_stanga(x, i);
        nr = st - dr + 1;
        if (st == -1 && dr == -1)       nr = 0;
        cnt = max(cnt, nr);
    }
    return cnt;
}

void Rezolva()
{
    int i, x, y, q, pos;
    for (i = 1; i <= col_max; i++)
        sort(L[i].begin(), L[i].end());
    for (i = 1; i <= m; i++)
    {
        fin >> q >> x >> y;
        if (q == 0) IterareCulori(x, y);
        else fout << IntervalCuloareMaxima(x, y) << '\n';
    }
}

int main()
{
    Citire();
    Rezolva();
    fin.close();
    fout.close();
    return 0;
}