#include <iostream>
#include <vector>

int main() {
  int n, q;
  std::cin >> n >> q;

  const int INF = 2'000'000'000;
  std::vector<int> cost(n, INF);

  for (int i = 0; i < q; i++) {
    int type, x;
    std::cin >> type >> x;
    x--;
    if(type == 1) {
      int ans = x;
      for(int j = 0; j < n; j++) {
        ans = std::min(ans, cost[j] + abs(x - j));
      }
      std::cout << ans << "\n";
    } else {
      int c;
      std::cin >> c;
      cost[x] = std::min(cost[x], c);
    }
  }
}