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

int n,q,t,x,c,plus_min = 2e9 + 1,minus_min = 2e9+1;
int main(){
    cin >> n >> q;
    while(q--){
        cin >> t;
        if(t == 1){
            cin >> x;
            cout << min(x - 1,max(plus_min - x,minus_min + x)) << endl;
        }
        else{
            cin >> x >> c;
            plus_min = min(plus_min,x + c);
            minus_min = min(minus_min,c - x);
        }
    }
}