#include<bits/stdc++.h>
#define taskname "B"
using namespace std;
struct Data{
int lc, rc, sum;
Data(){}
Data(int _lc, int _rc, int _sum) : lc(_lc), rc(_rc), sum(_sum) {}
};
vector<Data>st(1, Data(-1, -1, int(1e9)));
int get(int u, int v, int id = 0, int l = 1, int r = int(1e9)){
if(l > v || r < u || (id != -1 && st[id].sum == 0)){
return 0;
}
if(id == -1){
return min(r, v) - max(l, u) + 1;
}
if(u <= l && v >= r){
return st[id].sum;
}
int m = (l + r) >> 1;
return get(u, v, st[id].lc, l, m) + get(u, v, st[id].rc, m + 1, r);
}
void update(int u, int v, int id = 0, int l = 1, int r = int(1e9)){
if(l > v || r < u || st[id].sum == 0){
return;
}
if(u <= l && v >= r){
st[id].sum = 0;
return;
}
int m = (l + r) >> 1;
if(st[id].lc == -1){
st[id].lc = st.size();
st.emplace_back(Data(-1, -1, m - l + 1));
}
if(st[id].rc == -1){
st[id].rc = st.size();
st.emplace_back(Data(-1, -1, r - m));
}
update(u, v, st[id].lc, l, m);
update(u, v, st[id].rc, m + 1, r);
st[id].sum = st[st[id].lc].sum + st[st[id].rc].sum;
}
int main(){
ios_base::sync_with_stdio(0); cin.tie(0); cout.tie(0);
if(fopen(taskname".inp", "r")){
freopen(taskname".inp", "r", stdin);
}
int m;
cin >> m;
for(int _ = 0, c = 0; _ < m; _++){
int d, x, y;
cin >> d >> x >> y;
if(d == 1){
cout << (c = y - x + 1 - get(x + c, y + c)) << "\n";
}
else{
update(x + c, y + c);
}
}
}
