#include <stdio.h>
#include <fstream>
#include <algorithm>
using namespace std;
int n, m, i, j, ok, x, y, u, u1, u2, maxim, c;
int v[100010][70];

struct bila{
    int x, y;
} a[100010];

bool cmp(const bila &x, const bila &y){
    return x.x<y.x;
}

int cb(int p, int u, int x) {
    int m;
    while (p<=u) {
        m = (p+u)/2;
        if(a[m].x==x)
            return m;
        if(a[m].x<x)
            p = m+1;
        else
            u = m-1;
    }
}

int cb1(int p, int u, int x){
    int m;
    while (p<=u) {
        m = (p+u)/2;
        if(a[m].x==x)
            return m;
        if(a[m].x<x)
            p = m+1;
        else
            u = m-1;
    }
    return p;

}

int cb2(int p, int u, int x){
    int m;
    while (p<=u) {
        m = (p+u)/2;
        if(a[m].x==x)
            return m;
        if(a[m].x<x)
            p = m+1;
        else
            u = m-1;
    }
    return u;
}

int main(){
    freopen("marbles.in", "r", stdin);
    ofstream fout("marbles.out");
    scanf("%d %d", &n, &m);
    for(i=1; i<=n; i++)
        scanf("%d %d", &a[i].x, &a[i].y);
    sort(a+1, a+n+1, cmp);
    for(i=1; i<=n; i++)
    {
        for(j=1; j<65; j++)
            v[i][j]=v[i-1][j];
        v[i][ a[i].y ]++;
    }
    /*for(j=1; j<65; j++)
    {
        for(i=1; i<=n; i++)
            printf("%d ", v[i][j]);
        printf("\n");
    }*/
    for(i=1; i<=m; i++)
    {
        scanf("%d %d %d", &ok, &x, &y);
        if(ok==0)
        {
            u=cb(1, n, x);
//            if (u==0)
//                continue;
            a[u].x=x+y;
        }
        else
        {
            u1=cb1(1, n, x);
            u2=cb2(1, n, y);
            maxim=0;
            u1--;
            for(j=1; j<65; j++)
            {
                c=v[u2][j]-v[u1][j];
                if(c>maxim)
                    maxim=c;
            }
            fout << maxim <<"\n";
        }
    }
    return 0;
}