Problem: Let's consider an n × n square matrix, consisting of digits one and zero.

We'll consider a matrix good, if it meets the following condition: in each row of the matrix all ones go in one group. That is, each row of the matrix looks like that 00...0011...1100...00 (or simply consists of zeroes if it has no ones).

You are given matrix a of size n × n, consisting of zeroes and ones. Your task is to determine whether you can get a good matrix b from it by rearranging the columns or not.

Input

The first line contains integer n (1 ≤ n ≤ 500) — the size of matrix a.

Each of n following lines contains n characters "0" and "1" — matrix a. Note that the characters are written without separators.

Output

Print "YES" in the first line, if you can rearrange the matrix columns so as to get a good matrix b. In the next n lines print the good matrix b. If there are multiple answers, you are allowed to print any of them.

If it is impossible to get a good matrix, print "NO".

Examples

Input

6
100010
110110
011001
010010
000100
011001


Output

YES
011000
111100
000111
001100
100000
000111


Input

3
110
101
011


Output

NO

Solution (in CPP):

Solution:
#include <bits/stdc++.h>
using namespace std;
long long fra[105];
int MOD = 998244353;
const int N = 1005;
struct PQ_tree {
  int fail, res, n, tot;
  vector<int> G[N << 2];
  int ty[N << 2], sz[N << 2], szc[N << 2];
  bool s[N];
  vector<int> ans;
  inline int getstate(int u) {
    if (szc[u] == 0) return 0;
    if (szc[u] == sz[u]) return 2;
    return 1;
  }
  void addson(int first, int second) {
    if (second) G[first].push_back(second);
  }
  void join(int first, int second) {
    for (auto v : G[second]) G[first].push_back(v);
  }
  int mergeP(vector<int> &vec) {
    if (vec.size() == 0) return 0;
    if (vec.size() == 1) return vec[0];
    G[++tot] = vec;
    return tot;
  }
  void init(int _n) {
    n = _n;
    tot = n + 1;
    memset(ty, 0, sizeof(ty));
    for (int i = 1; i <= n; i++) G[n + 1].push_back(i);
    fail = 0;
  }
  void dfs(int u) {
    sz[u] = u <= n;
    szc[u] = u <= n && s[u];
    for (auto v : G[u]) {
      dfs(v);
      sz[u] += sz[v];
      szc[u] += szc[v];
    }
  }
  int check(int u, int t) {
    if (fail) return 0;
    vector<int> vec[3];
    for (auto v : G[u]) vec[getstate(v)].push_back(v);
    if (vec[1].size() > 2 || (t && vec[1].size() > 1)) return fail = 1, 0;
    if (t == 0 && vec[1].size() == 1 && vec[2].size() == 0)
      return check(vec[1][0], 0);
    if (ty[u] == 0) {
      int p2 = mergeP(vec[2]);
      if (t == 0) {
        G[u] = vec[0];
        if (vec[1].size() == 0)
          addson(u, p2);
        else {
          int tmp1 = check(vec[1][0], 2);
          addson(tmp1, p2);
          if (vec[1].size() == 2) join(tmp1, check(vec[1][1], 1));
          addson(u, tmp1);
        }
        return u;
      } else {
        ty[u] = 1;
        G[u].clear();
        addson(u, p2);
        if (vec[1].size() == 1) join(u, check(vec[1][0], 1));
        addson(u, mergeP(vec[0]));
        if (t == 2) reverse(G[u].begin(), G[u].end());
      }
      return u;
    } else {
      if (getstate(G[u].front()) > getstate(G[u].back()))
        reverse(G[u].begin(), G[u].end());
      int flag = 0;
      vector<int> tG;
      for (auto v : G[u]) {
        int sta = getstate(v);
        if (sta == 0) {
          if (flag == 1) flag = 2;
          tG.push_back(v);
        } else if (sta == 2) {
          if (flag == 0)
            flag = 1;
          else if (flag == 2)
            return fail = 2, 0;
          tG.push_back(v);
        } else {
          int p1;
          if (flag == 0)
            flag = 1, p1 = check(v, 2);
          else if (flag == 1)
            flag = 2, p1 = check(v, 1);
          else
            return fail = 3, 0;
          for (auto first : G[v]) tG.push_back(first);
        }
      }
      if (t && flag == 2) return fail = 4, 0;
      if (t == 1) reverse(tG.begin(), tG.end());
      G[u] = tG;
      return u;
    }
  }
  void dfs_permutation(int u) {
    if (u <= n) {
      ans.push_back(u);
      return;
    }
    if (!ty[u]) {
      res = (long long)res * fra[G[u].size()] % MOD;
    } else if (G[u].size() != 1) {
      res = (long long)res * 2 % MOD;
    }
    for (auto v : G[u]) {
      dfs_permutation(v);
    }
  }
  int get_permutation() {
    res = 1;
    dfs_permutation(n + 1);
    return res;
  }
  void restrict(vector<int> res) {
    for (int i = 1; i <= n; i++) s[i] = 0;
    for (auto first : res) s[first] = 1;
    dfs(n + 1);
    check(n + 1, 0);
  }
};
void solve() {
  int n;
  scanf("%d", &n);
  char c[505][505];
  PQ_tree pq;
  pq.init(n);
  for (int i = 1; i <= n; i++) {
    scanf("%s", c[i] + 1);
    vector<int> v;
    for (int j = 1; j <= n; j++) {
      if (c[i][j] == '1') v.push_back(j);
    }
    pq.restrict(v);
  }
  if (pq.fail) {
    printf("NO\n");
    return;
  }
  pq.get_permutation();
  printf("YES\n");
  for (int i = 1; i <= n; i++) {
    for (auto it : pq.ans) {
      printf("%c", c[i][it]);
    }
    printf("\n");
  }
}
int main() {
  int t = 1;
  while (t--) {
    solve();
  }
  return 0;
}