#include <bits/stdc++.h>
inline long long read() {
  long long x = 0;
  char ch = getchar(), w = 1;
  while (ch < '0' || ch > '9') {
    if (ch == '-') w = -1;
    ch = getchar();
  }
  while (ch >= '0' && ch <= '9') {
    x = x * 10 + ch - '0';
    ch = getchar();
  }
  return x * w;
}
void write(long long x) {
  if (x < 0) putchar('-'), x = -x;
  if (x > 9) write(x / 10);
  putchar(x % 10 + '0');
}
inline void writeln(long long x) {
  write(x);
  puts("");
}
using namespace std;
const int N = 3e5 + 666;
long long a[N], n;
const long long mo = 998244353;
long long ksm(long long x, long long y) {
  long long res = 1;
  for (; y; y >>= 1, x = x * x % mo)
    if (y & 1) res = res * x % mo;
  return res;
}
int main() {
  n = read();
  long long inv = ksm(100, mo - 2);
  for (int i = 1; i <= n; ++i) a[i] = read() * inv % mo;
  long long e1 = 0, s = 1;
  for (int i = 1; i <= n; ++i) {
    e1 += s;
    s *= a[i] % mo;
    s %= mo;
    e1 %= mo;
  }
  e1 = e1 * ksm(s, mo - 2) % mo;
  long long ans = 0;
  for (int i = n; i >= 1; --i) {
    ans = ans * a[i] % mo + (1 - a[i] + mo) * e1 % mo;
    ans += 1;
    ans %= mo;
  }
  writeln(ans);
  return 0;
}
