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#include <bits/stdc++.h>
#define MAX 80
using namespace std;
ifstream fin("marbles.in");
ofstream fout("marbles.out");
vector<int>g[MAX];
int m,n,maxim,minim=70,maxim1;
int cautbin(int culoare,int val);
int cautbin2(int culoare,int val);
int main()
{
int i,j,poz,cul,ce,a,b,unde,x1,x2;
fin>>n>>m;
for(i=1;i<=n;i++)
{
fin>>poz>>cul;
if(cul>maxim)
maxim=cul;
if(cul<minim)
minim=cul;
g[cul].push_back(poz);
}
for(i=minim;i<=maxim;i++)
if(g[i].size())
sort(g[i].begin(),g[i].end());
for(i=1;i<=m;i++)
{
fin>>ce>>a>>b;
if(ce==0)
{
for(j=minim;j<=maxim;j++)
if(g[j].size())
{
unde=cautbin2(j,a);
if(unde!=-1)
{
g[j][unde]=a+b;
break;
}
}
}
else if(ce==1)
{
maxim1=0;
for(j=minim;j<=maxim;j++)
{
x1=cautbin(j,a);
x2=cautbin(j,b);
if(g[j][x1]==a&&g[j][x2]==b)
{if(maxim1<x2-x1+1)
maxim1=x2-x1+1;}
else
if(maxim1<x2-x1)
maxim1=x2-x1;
}
fout<<maxim1<<endl;
}
}
return 0;
}
int cautbin(int culoare,int val)
{
int st=-1,dr=g[culoare].size(),mij;
while(dr-st>1)
{
mij=(st+dr)/2;
if(g[culoare][mij]==val)
return mij;
else if(g[culoare][mij]<val)
st=mij;
else
dr=mij;
}
return dr;
}
int cautbin2(int culoare,int val)
{
int st=-1,dr=g[culoare].size(),mij;
while(dr-st>1)
{
mij=(st+dr)/2;
if(g[culoare][mij]==val)
return mij;
else if(g[culoare][mij]<val)
st=mij;
else
dr=mij;
}
return -1;
}