#include "bits/stdc++.h"
using namespace std;
using ll = long long; using ull = unsigned long long;
#define int ll
using vb = vector<bool>; using vvb = vector<vb>;
using vi = vector<int>; using vvi = vector<vi>;
using vl = vector<ll>; using vvl = vector<vl>;
using pii = pair<int,int>; using pll = pair<ll,ll>;
#define FOR(i,a,b) for(ll i = (a); i < (ll)(b); ++i)
#define REP(i,n) FOR(i,0,n)
#define RFOR(i,a,b) for(ll i = (ll)(b)-1;i >= a;--i)
#define RREP(i,n) RFOR(i,0,n)
#define ALL(obj) (obj).begin(), (obj).end()
#define rALL(obj) (obj).rbegin(), (obj).rend()
#define eb(val) emplace_back(val)
const double PI = acos(-1);
const double EPS = 1e-10;
const ll MOD = 1e9+7;
void cioacc(){//accelerate cin/cout
  cin.tie(0);
  ios::sync_with_stdio(false);
}

signed main(){
  int n;
  cin >> n;
  vvi a(n);
  int q;
  cin >> q;
  REP(i,q){
    int b,t;
    cin >> b >> t;
    if(b==0){
      int x;
      cin >> x;
      a[t].eb(x);
    }else if(b==1){
      REP(j,a[t].size()-1) cout << a[t][j] << " ";
      if(!a[t].empty()) cout << a[t].back() << endl;
      else puts("");
    }else{
      a[t].clear();
    }
  }
}

