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

ll op(ll a, ll b) {
    return min(a, b);
}

const ll INF = 1LL << 60;

ll e() {
    return INF;
}

ll n,q,t,x,c;
int main(){
    cin >> n >> q;
    vector<ll> init(n, INF);
    atcoder::segtree<ll, op, e> left(init), right(init);
    while(q--){
        cin >> t;
        if(t == 1){
            cin >> x;
            ll ans = x - 1;
            cout << min(x - 1,min(left.prod(0,x) + x,right.prod(x - 1,n) - x)) << "\n";
        }
        else if(t == 2){
            cin >> x >> c;
            left.set(x-1, c - x);
            right.set(x-1, c + x);
        }
    }
}