/* Aa^~ kokoro ga pyonpyon suru n jaa^~
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*/

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

using VI = vector<int>;
using VVI = vector<VI>;
using PII = pair<int, int>;
using LL = long long;
using VL = vector<LL>;
using VVL = vector<VL>;
using PLL = pair<LL, LL>;
using VS = vector<string>;

#define ALL(a)  begin((a)),end((a))
#define RALL(a) (a).rbegin(), (a).rend()
#define PB push_back
#define EB emplace_back
#define MP make_pair
#define MT make_tuple
#define SZ(a) int((a).size())
#define SORT(c) sort(ALL((c)))
#define RSORT(c) sort(RALL((c)))
#define UNIQ(c) (c).erase(unique(ALL((c))), end((c)))

#define FOR(i,a,b) for(int i=(a);i<(b);++i)
#define REP(i,n)  FOR(i,0,n)

#define FF first
#define SS second

template<class S, class T>
istream& operator>>(istream& is, pair<S,T>& p){
  return is >> p.FF >> p.SS;
}
template<class T>
istream& operator>>(istream& is, vector<T>& xs){
  for(auto& x: xs)
	is >> x;
  return is;
}
template<class S, class T>
ostream& operator<<(ostream& os, const pair<S,T>& p){
  return os << p.FF << " " << p.SS;
}
template<class T>
ostream& operator<<(ostream& os, const vector<T>& xs){
  for(unsigned int i=0;i<xs.size();++i)
	os << (i?" ":"") << xs[i];
  return os;
}
template<class T>
void maxi(T& x, T y){
  if(x < y) x = y;
}
template<class T>
void mini(T& x, T y){
  if(x > y) x = y;
}
void debug(istringstream&){}
template <char sep=',', class Head, class... Tail>
void debug(istringstream& iss, Head&& head, Tail&&... tail)
{
  string name;
  getline(iss, name, ',');
  cout << sep << name << "=" << head;
  debug(iss, forward<Tail>(tail)...);
}

#ifdef PYONPOI
#define DEBUG(...) \
  do{ \
    istringstream ss(#__VA_ARGS__); \
    debug<' '>(ss, __VA_ARGS__); \
    cout<<endl; \
  }while(0)
#else
#define DEBUG
#endif
void init_io(int argc, char* argv[]){
  cin.tie(0);
  ios_base::sync_with_stdio(false);
#ifdef PYONPOI
  if(argc > 1) {
    ifstream *ifs = new ifstream();
    ifs->open(argv[1]);
    cin.rdbuf(ifs->rdbuf());
  }
#endif
}


const double EPS = 1e-10;
const double PI  = acos(-1.0);
const LL MOD = 1e9+7;


// (T, op) should be monoidal.
template<typename T>
class SegTree {
public:
  using OP = function<T(T, T)>;

private:
  int N;
  const T zero;
  OP op;
  unique_ptr<T[]> data;

  T sub_query(int a, int b, int k, int l, int r) const {
    if(b <= l || r <= a) return zero;
    if(a <= l && r <= b) return data[k];

    int mid = (l + r) / 2;
    auto vl = sub_query(a, b, k * 2, l, mid);
    auto vr = sub_query(a, b, k * 2 + 1, mid, r);

    return op(vl, vr);
  }
public:
  SegTree(int n, const T& zero, OP op)
  : zero(zero), op(op)
  {
    N = 1;
    while(N < n) N *= 2;
    data = make_unique<T[]>(N*2);
    for(int i=0;i<N*2;++i) data[i] = zero;
  }

  SegTree(int n, const T& zero, OP op, const vector<T>& init)
  : zero(zero), op(op)
  {
    N = 1;
    while(N < n) N *= 2;
    data = make_unique<T[]>(N*2);

    for(int i=0;i<n;++i) data[N+i] = init[i];
    for(int i=N-1;i>0;--i) data[i] = op(data[i*2], data[i*2+1]);
  }


  // xs[ix] = x, 0-indexed
  void update(int ix, const T& x) {
    ix += N;
    data[ix] = x;
    while(ix > 0){
      ix /= 2;
      data[ix] = op(data[ix*2], data[ix*2+1]);
    }
  }

  // return xs[ix]
  T get(int ix) const {
    return data[ix + N];
  }

  // return xs[a] `op` xs[a+1] `op` ... `op` xs[b-1]
  T query(int a, int b) const {
    return sub_query(a, b, 1, 0, N);
  }
};

int main(int argc, char* argv[]){
  init_io(argc, argv);

  using RMQ = SegTree<uint>;
  RMQ::OP op = [](uint a, uint b){ return min(a, b); };

  int N, Q;
  cin >> N >> Q;

  uint zero = (1u<<31) - 1;
  vector<uint> init(N, zero);
  RMQ rmq(N, zero, op, init);

  while(Q--){
    uint c, x, y;
    cin >> c >> x >> y;
    if(c == 0) rmq.update(x, y);
    else cout << rmq.query(x, y+1) << endl;
  }

  return 0;
}



Measured memory_bytes: 4072