#include "bits/stdc++.h"
using namespace std;
#define FOR(i,j,k) for(int (i)=(j);(i)<(int)(k);++(i))
#define rep(i,j) FOR(i,0,j)
#define each(x,y) for(auto &(x):(y))
#define mp make_pair
#define mt make_tuple
#define all(x) (x).begin(),(x).end()
#define debug(x) cout<<#x<<": "<<(x)<<endl
#define smax(x,y) (x)=max((x),(y))
#define smin(x,y) (x)=min((x),(y))
#define MEM(x,y) memset((x),(y),sizeof (x))
#define sz(x) (int)(x).size()
#define pb push_back
typedef long long ll;
typedef pair<int, int> pii;
typedef vector<int> vi;
typedef vector<ll> vll;

template<class Val>
struct BinaryIndexedTree {
    int n;
    vector<Val> t;
    BinaryIndexedTree() {}
    BinaryIndexedTree(int _n) :n(_n + 1), t(_n + 1) {}
    void add(int k, Val val) {
        k++;
        while (k < n) {
            t[k] += val;
            k += (k&-k);
        }
    }
    void set(int k, Val val) {
        add(k, -sum(k, k + 1));
        add(k, val);
    }
    Val sum(int k) {
        Val r = 0;
        while (k > 0) {
            r += t[k];
            k -= (k&-k);
        }
        return r;
    }
    Val sum(int l, int r) {
        return sum(r) - sum(l);
    }
};
typedef BinaryIndexedTree<int> BIT;

ll A = 0, B = 0;
int Q, T[100005], X[100005], idx[100005];
vll men, pw;

int main(){
    ios::sync_with_stdio(false);
    cin.tie(0);

    cin >> Q;
    rep(i, Q) {
        cin >> T[i] >> X[i];
        if (T[i] == 1) {
            men.push_back(X[i] - A);
            idx[i] = sz(men) - 1;
        }
        if (T[i] == 3)A += X[i];
    }

    pw = men;
    sort(all(pw));
    pw.erase(unique(all(pw)), pw.end());
    int P = sz(pw);

    BIT bit(P);

    rep(i, Q) {
        int t = T[i], x = X[i];
        if (t == 1) {
            int k = lower_bound(all(pw), men[idx[i]]) - pw.begin();
            bit.add(k, 1);
        } else if (t == 2) {
            int k = lower_bound(all(pw), men[x - 1]) - pw.begin();
            bit.add(k, -1);
        } else {
            B += x;
        }

        int l = 0, r = P + 1;
        while (r - l > 1) {
            int m = (l + r) / 2;
            auto it = lower_bound(all(pw), m - B);
            if (it == pw.end()) {
                r = m;
            } else {
                int k = it - pw.begin();
                auto ok = bit.sum(k, P) >= m;
                if (ok)l = m;
                else r = m;
            }
        }
        cout << l << endl;
    }
}