#include <bits/stdc++.h>
using namespace std;
template <class T>
void splitstr(const string &s, vector<T> &out) {
  istringstream in(s);
  out.clear();
  copy(istream_iterator<T>(in), istream_iterator<T>(), back_inserter(out));
}
template <class T>
T gcd(T a, T b) {
  return b ? gcd(b, a % b) : a;
}
static void redirect(int argc, const char **argv) {
  ios::sync_with_stdio(false);
  cin.tie(NULL);
  if (argc > 1) {
    static filebuf f;
    f.open(argv[1], ios::in);
    cin.rdbuf(&f);
    if (!cin) {
      cerr << "Failed to open '" << argv[1] << "'" << endl;
      exit(1);
    }
  }
  if (argc > 2) {
    static filebuf f;
    f.open(argv[2], ios::out | ios::trunc);
    cout.rdbuf(&f);
    if (!cout) {
      cerr << "Failed to open '" << argv[2] << "'" << endl;
    }
  }
}
int main(int argc, const char **argv) {
  redirect(argc, argv);
  int N;
  cin >> N;
  set<string> init[2], trg[2];
  int nex = 0;
  for (int i = 0; i < N; i++) {
    string s;
    int ex;
    cin >> s >> ex;
    nex += ex;
    init[!ex].insert(move(s));
  }
  for (int i = 0; i < nex; i++) trg[0].insert(to_string(i + 1));
  for (int i = nex; i < N; i++) trg[1].insert(to_string(i + 1));
  for (int i = 0; i < 2; i++) {
    vector<string> shared;
    for (const auto &s : init[i])
      if (trg[i].count(s)) shared.push_back(s);
    for (const auto &s : shared) {
      init[i].erase(s);
      trg[i].erase(s);
    }
  }
  vector<pair<string, string>> ans;
  if (!init[0].empty() && init[0] == trg[1] && init[1] == trg[0]) {
    ans.emplace_back(*init[0].begin(), "tmp");
    init[0].erase(*init[0].begin());
    init[0].insert("tmp");
  }
  set<string> both[2], one[2];
  for (int i = 0; i < 2; i++) {
    set_intersection(begin(trg[i]), end(trg[i]), begin(init[!i]), end(init[!i]),
                     inserter(both[i], both[i].end()));
    set_difference(begin(trg[i]), end(trg[i]), begin(init[!i]), end(init[!i]),
                   inserter(one[i], one[i].end()));
  }
  while (!init[0].empty() || !init[1].empty()) {
    int side = one[0].empty() ? 1 : 0;
    string t = *one[side].begin();
    string s =
        (both[!side].empty()) ? *init[side].begin() : *both[!side].begin();
    ans.emplace_back(s, t);
    both[!side].erase(s);
    init[side].erase(s);
    trg[side].erase(t);
    one[side].erase(t);
    if (trg[!side].count(s)) one[!side].insert(s);
  }
  cout << ((long long)(ans).size()) << '\n';
  for (const auto &a : ans)
    cout << "move " << a.first << ' ' << a.second << '\n';
  return 0;
}
