#include <bits/stdc++.h>
using std::max;
using std::min;
const int inf = 0x3f3f3f3f, Inf = 0x7fffffff;
const long long INF = 0x3f3f3f3f3f3f3f3f;
__inline__ __attribute__((always_inline)) unsigned int rnd() {
  static unsigned int seed = 416;
  return seed += 0x71dad4bfu, seed ^= seed >> 5, seed += 0xc6f74d88u,
         seed ^= seed << 17, seed += 0x25e6561u, seed ^= seed >> 13;
}
template <typename _Tp>
_Tp gcd(const _Tp &a, const _Tp &b) {
  return (!b) ? a : gcd(b, a % b);
}
template <typename _Tp>
__inline__ __attribute__((always_inline)) _Tp abs(const _Tp &a) {
  return a >= 0 ? a : -a;
}
template <typename _Tp>
__inline__ __attribute__((always_inline)) void chmax(_Tp &a, const _Tp &b) {
  (a < b) && (a = b);
}
template <typename _Tp>
__inline__ __attribute__((always_inline)) void chmin(_Tp &a, const _Tp &b) {
  (b < a) && (a = b);
}
template <typename _Tp>
__inline__ __attribute__((always_inline)) void read(_Tp &x) {
  char ch(getchar());
  bool f(false);
  while (!isdigit(ch)) f |= ch == 45, ch = getchar();
  x = ch & 15, ch = getchar();
  while (isdigit(ch)) x = (((x << 2) + x) << 1) + (ch & 15), ch = getchar();
  f && (x = -x);
}
template <typename _Tp, typename... Args>
__inline__ __attribute__((always_inline)) void read(_Tp &t, Args &...args) {
  read(t);
  read(args...);
}
template <typename _Tp, typename... Args>
__inline__ __attribute__((always_inline)) _Tp min(const _Tp &a, const _Tp &b,
                                                  const Args &...args) {
  return a < b ? min(a, args...) : min(b, args...);
}
template <typename _Tp, typename... Args>
__inline__ __attribute__((always_inline)) _Tp max(const _Tp &a, const _Tp &b,
                                                  const Args &...args) {
  return a < b ? max(b, args...) : max(a, args...);
}
__inline__ __attribute__((always_inline)) int read_str(char *s) {
  char ch(getchar());
  while (ch == ' ' || ch == '\r' || ch == '\n') ch = getchar();
  char *tar = s;
  *tar = ch, ch = getchar();
  while (ch != ' ' && ch != '\r' && ch != '\n' && ch != EOF)
    *(++tar) = ch, ch = getchar();
  return tar - s + 1;
}
const int N = 2000005;
const int mod = 998244353;
template <typename _Tp1, typename _Tp2>
__inline__ __attribute__((always_inline)) void add(_Tp1 &a, _Tp2 b) {
  (a += b) >= mod && (a -= mod);
}
template <typename _Tp1, typename _Tp2>
__inline__ __attribute__((always_inline)) void sub(_Tp1 &a, _Tp2 b) {
  (a -= b) < 0 && (a += mod);
}
long long fac[N], inv[N], ifac[N];
__inline__ __attribute__((always_inline)) long long C(int n, int m) {
  if (n < m || m < 0 || n < 0) return 0;
  return fac[n] * ifac[m] % mod * ifac[n - m] % mod;
}
int a[N], c[N];
long long b[N];
__inline__ __attribute__((always_inline)) int calc(int n, int m, int k) {
  return (C(k + n - 1, n - 1) - C(k - m + n - 1, n - 1) + mod) % mod;
}
int main() {
  fac[0] = fac[1] = inv[0] = inv[1] = ifac[0] = ifac[1] = 1;
  for (int i = 2; i < N; ++i)
    fac[i] = fac[i - 1] * i % mod,
    inv[i] = inv[mod % i] * (mod - mod / i) % mod,
    ifac[i] = ifac[i - 1] * inv[i] % mod;
  int n;
  read(n);
  int maxx = 0;
  for (int i = 1; i <= n; ++i)
    read(a[i]), chmax(maxx, a[i]), ++b[a[i] + 1], ++c[a[i]];
  for (int i = n; i <= maxx; ++i) b[i] += b[i - n];
  for (int i = 1; i <= maxx; ++i) b[i] += b[i - 1];
  for (int i = maxx; i >= 0; --i) c[i] += c[i + 1];
  int ans = 0;
  for (int t = 0; t <= maxx; ++t) {
    if (b[t] > t) break;
    add(ans, calc(n, c[t], t - b[t]));
  }
  printf("%d\n", ans);
  return 0;
}
