MOD = 998244353i64

def inv(v : Int64)
  pow(v, MOD - 2)
end

def pow(v : Int64, p)
  ret = 1i64
  while p > 0
    if (p & 1i64) != 0
      ret *= v
      ret %= MOD
    end
    v *= v
    v %= MOD
    p >>= 1
  end
  ret
end

ans4 = 25i64 * inv(36i64) % MOD
n = read_line.to_i64
if n <= 2
  puts 1
  exit
end
if n == 3
  puts 2
  exit
end
c2 = n * (n - 1) % MOD * inv(2i64) % MOD
c3 = n * (n - 1) % MOD * (n - 2) % MOD * inv(6i64) % MOD
c4 = n * (n - 1) % MOD * (n - 2) % MOD * (n - 3) % MOD * inv(24i64) % MOD
puts (c4 * ans4 + 2 + c2 - n) % MOD