문제

링크

풀이

#include <iostream>
#include <sstream>
#include <string>
using namespace std;
 
void solve(void) {
  string s; getline(cin, s);
 
  stringstream ss(s); string t;
  while (ss >> t) cout << (t.length() == 4 ? "****" : t) << " ";
  cout << "\n\n";
}
 
int main(void) {
  ios::sync_with_stdio(false);
  cin.tie(nullptr);
 
  int n; cin >> n;
  cin.ignore();
  while (n--) solve();
  return 0;
}