#include <bits/stdc++.h>

namespace DECLARATIONS {
  using namespace std;

  using ll = long long;
  using PI = pair<int, int>;
  template<class T> using V = vector<T>;
  using VI = V<int>;
#define _1 first
#define _2 second

#ifdef MY_DEBUG
# define DEBUG(x) x
#else
# define DEBUG(x)
#endif

  template<class T>
  inline void debug(T &A) {
    DEBUG(
        for (const auto &a : A) {
          cerr << a << " ";
        }
        cerr << '\n';
    )
  }

  template<class T>
  inline void debug_dim2(T &A) {
    DEBUG(
        for (const auto &as : A) {
          debug(as);
        }
    )
  }

  template<typename ... Args>
  inline void debug(const char *format, Args const &... args) {
    DEBUG(
        fprintf(stderr, format, args ...);
        cerr << '\n';
    )
  }

  template<typename ... Args>
  string format(const std::string &fmt, Args ... args) {
    size_t len = std::snprintf(nullptr, 0, fmt.c_str(), args ...);
    std::vector<char> buf(len + 1);
    std::snprintf(&buf[0], len + 1, fmt.c_str(), args ...);
    return std::string(&buf[0], &buf[0] + len);
  }
}
using namespace DECLARATIONS;

const int MOD = 1000000007;
class Comb {
public:
  int MOD;
  V<ll> F, I;

  Comb(int N, int MOD): MOD(MOD), F(N + 1), I(N + 1) {
    F[0] = 1;
    for (int i = 1; i <= N; ++i) {
      F[i] = F[i - 1] * i % MOD;
    }

    I[N] = pow_mod(F[N], MOD - 2, MOD);
    for (int i = N - 1; i >= 0; --i) {
      I[i] = I[i + 1] * (i + 1) % MOD;
    }
  }

  static ll pow_mod(ll x, int k, int MOD) {
    ll res = k >= 2 ? pow_mod(x * x % MOD, k / 2, MOD) : 1ll;
    if (k&1) res = res * x % MOD;
    return res;
  };

  ll operator()(int n, int k) {
    if (k < 0 || k > n) return 0ll;
    return F[n] * I[n - k] % MOD * I[k] % MOD;
  };

  ll rev(int x) {
    return F[x - 1] * I[x] % MOD;
  }
};

int main() {
  std::ios::sync_with_stdio(false);
  cin.tie(nullptr);

  int N;
  cin >> N;
  V<VI> g(N);
  for (int i = 0; i < N - 1; ++i) {
    int a, b;
    cin >> a >> b;
    a--; b--;
    g[a].push_back(b);
    g[b].push_back(a);
  }

  Comb comb(N, MOD);
  ll ans = 0ll;
  function<void(int, int, int)> dfs = [&](int v, int p, int depth) {
    ans += comb.rev(depth + 1);
    for (const auto &u : g[v]) {
      if (u != p) {
        dfs(u, v, depth + 1);
      }
    }
  };

  dfs(0, -1, 0);
  ans %= MOD;
  ans *= comb.F[N];
  ans %= MOD;

  cout << ans;

  return 0;
}