#include <bits/stdc++.h>
using namespace std;
template <class T>
ostream &operator<<(ostream &os, vector<T> V) {
  os << "[";
  for (auto const &vv : V) os << vv << ",";
  os << "]";
  return os;
}
template <class L, class R>
ostream &operator<<(ostream &os, pair<L, R> P) {
  os << "(" << P.first << "," << P.second << ")";
  return os;
}
template <typename T>
inline void print_128(T num) {
  if (!num) return;
  print_128(num / 10);
  cout.put((num % 10) + '0');
}
inline int fstoi(const string &str) {
  auto it = str.begin();
  bool neg = 0;
  int num = 0;
  if (*it == '-')
    neg = 1;
  else
    num = *it - '0';
  ++it;
  while (it < str.end()) num = num * 10 + (*it++ - '0');
  if (neg) num *= -1;
  return num;
}
inline void getch(char &x) {
  while (x = getchar_unlocked(), x < 33) {
    ;
  }
}
inline void getstr(string &str) {
  str.clear();
  char cur;
  while (cur = getchar_unlocked(), cur < 33) {
    ;
  }
  while (cur > 32) {
    str += cur;
    cur = getchar_unlocked();
  }
}
template <typename... Args>
inline void getstr(string &str, Args &...arg) {
  str.clear();
  char cur;
  while (cur = getchar_unlocked(), cur < 33) {
    ;
  }
  while (cur > 32) {
    str += cur;
    cur = getchar_unlocked();
  }
  getstr(arg...);
}
template <typename T>
inline bool sc(T &num) {
  bool neg = 0;
  int c;
  num = 0;
  while (c = getchar_unlocked(), c < 33) {
    if (c == EOF) return false;
  }
  if (c == '-') {
    neg = 1;
    c = getchar_unlocked();
  }
  for (; c > 47; c = getchar_unlocked()) num = num * 10 + c - 48;
  if (neg) num *= -1;
  return true;
}
template <typename T, typename... Args>
inline void sc(T &num, Args &...args) {
  bool neg = 0;
  int c;
  num = 0;
  while (c = getchar_unlocked(), c < 33) {
    ;
  }
  if (c == '-') {
    neg = 1;
    c = getchar_unlocked();
  }
  for (; c > 47; c = getchar_unlocked()) num = num * 10 + c - 48;
  if (neg) num *= -1;
  sc(args...);
}
inline bool isnum(string &s) {
  for (auto &i : s)
    if (!isdigit(i)) return false;
  return true;
}
int main() {
  srand(time(NULL));
  ios_base::sync_with_stdio(0);
  cin.tie(0);
  vector<pair<string, string> > vec;
  int n;
  sc(n);
  int arr[n + 1];
  memset(arr, 0, sizeof arr);
  vector<string> exam;
  vector<string> test;
  string str;
  int tmp;
  int examcnt = 0;
  std::vector<int> examintest, testinexam;
  for (int i = (0); i < int((n)); ++i) {
    getstr(str);
    sc(tmp);
    if (tmp) {
      ++examcnt;
      if (isnum(str) && to_string(stoi(str)) == str) {
        int in = stoi(str);
        if (in <= n && in >= 1) {
          arr[in] = 1;
        } else
          exam.push_back(str);
      } else
        exam.push_back(str);
    } else {
      if (isnum(str) && to_string(stoi(str)) == str) {
        int in = stoi(str);
        if (in <= n && in >= 1) {
          arr[in] = 2;
        } else
          test.push_back(str);
      } else
        test.push_back(str);
    }
  }
  std::vector<int> freeexam, freetest;
  for (auto i = (1); i <= (examcnt); ++i) {
    if (!arr[i])
      freeexam.push_back(i);
    else if (arr[i] == 2)
      testinexam.push_back(i);
  }
  for (auto i = (examcnt + 1); i <= (n); ++i) {
    if (!arr[i])
      freetest.push_back(i);
    else if (arr[i] == 1)
      examintest.push_back(i);
  }
  if ((examintest.size() || testinexam.size()) &&
      (test.empty() && exam.empty())) {
    string nazwa;
    for (int i = (0); i < int((6)); ++i) {
      nazwa.push_back(char((rand() % 26) + 97));
    }
    test.push_back(nazwa);
    arr[testinexam.back()] = 0;
    freeexam.push_back(testinexam.back());
    vec.push_back({to_string(testinexam.back()), nazwa});
    testinexam.pop_back();
  }
  while (examintest.size()) {
    if (!freeexam.empty()) {
      arr[freeexam.back()] = 1;
      vec.push_back({to_string(examintest.back()), to_string(freeexam.back())});
      arr[examintest.back()] = 0;
      freetest.push_back(examintest.back());
      freeexam.pop_back();
      examintest.pop_back();
    } else {
      arr[examintest.back()] = 0;
      arr[freetest.back()] = 2;
      vec.push_back({to_string(testinexam.back()), to_string(freetest.back())});
      arr[testinexam.back()] = 1;
      vec.push_back(
          {to_string(examintest.back()), to_string(testinexam.back())});
      freetest.back() = examintest.back();
      testinexam.pop_back();
      examintest.pop_back();
    }
  }
  while (testinexam.size()) {
    if (!freetest.empty()) {
      arr[freetest.back()] = 2;
      vec.push_back({to_string(testinexam.back()), to_string(freetest.back())});
      arr[testinexam.back()] = 0;
      freeexam.push_back(testinexam.back());
      freetest.pop_back();
      testinexam.pop_back();
    } else {
      arr[testinexam.back()] = 0;
      arr[freeexam.back()] = 1;
      vec.push_back({to_string(examintest.back()), to_string(freeexam.back())});
      arr[examintest.back()] = 2;
      vec.push_back(
          {to_string(testinexam.back()), to_string(examintest.back())});
      freeexam.back() = testinexam.back();
      testinexam.pop_back();
      examintest.pop_back();
    }
  }
  for (auto &i : exam) {
    arr[freeexam.back()] = 1;
    vec.push_back({i, to_string(freeexam.back())});
    freeexam.pop_back();
  }
  for (auto &i : test) {
    arr[freetest.back()] = 2;
    vec.push_back({i, to_string(freetest.back())});
    freetest.pop_back();
  }
  cout << vec.size() << '\n';
  for (auto &i : vec) {
    cout << "move " << i.first << ' ' << i.second << '\n';
  }
}
