/*
ID: jerrywcy
LINK: https://atcoder.jp/contests/arc107/tasks/arc107_a
TITLE: A - Simple Math
LANG: C++
STATUS: 
*/
#include <bits/stdc++.h>
#define DEBUG

#define init(array,x) memset(array,x,sizeof(array))

using namespace std;

typedef long long ll;

const int inf=0x3f3f3f3f;
const ll mod=998244353;

ll a,b,c;

int read(){
    int f=1,x=0;
    char ss=getchar();
    while(ss<'0'||ss>'9'){if(ss=='-')f=-1;ss=getchar();}
    while(ss>='0'&&ss<='9'){x=x*10+ss-'0';ss=getchar();}
    return f*x;
}

int main()
{
    a=read();b=read();c=read();
    a=a*(a+1)/2%mod;b=b*(b+1)/2%mod;c=c*(c+1)/2%mod;
    printf("%lld\n",a*b%mod*c%mod);

    return 0;
}
/*

  Author: klmcoder
  Date  : 20210227 1735 hrs.
  Info  : atcoder [abc193-A]

*/
#include <iostream>
#include <iomanip>

int main(void)
{
  int a, b;
  float p;

  std::cin >> a >> b;

  p = (((float)a-b)/(float)a)*100.0;
  std::cout << p << "\n";

  return 0;
}
