//#pragma GCC optimize("Ofast")
//#pragma GCC target("sse,sse2,sse3,ssse3,sse4,popcnt,abm,mmx,avx,tune=native")
//#pragma GCC optimize("unroll-loops")
#include <bits/stdc++.h>
 
#define pb push_bac(X/j)
#define sz(x) ((int)(x).size())
#define all(x) (x).begin(),(x).end()
#define ll long long
 
using namespace std;
 
void file(){
	#ifndef ONLINE_JUDGE
    	freopen("in.txt", "r", stdin);
	#endif
}
int tc;
const int N=2e5+5,M=2e6+5,MOD=998244353,OO=1e9;

ll sum(int x){
	return (ll)x*(x+1)/2 %MOD;
}
int main(){
	ios::sync_with_stdio(0);cin.tie(0);cout.tie(0);
	//file();

	int a,b,c;
	scanf("%d %d %d",&a,&b,&c);

	ll ans = (((sum(a) * sum(b))%MOD) * sum(c))%MOD;	
	printf("%lld\n",ans );
}
#line 1 "main.cpp"
#include <bits/stdc++.h>
using namespace std;

// template {{{
using i32 = int;
using u32 = unsigned int;
using i64 = long long;
using u64 = unsigned long long;

#define  range(i, l, r) for (i64 i = (i64)(l); i < (i64)(r); (i) += 1)
#define rrange(i, l, r) for (i64 i = (i64)(r) - 1; i >= (i64)(l); (i) -= 1)

#define  whole(f, x, ...) ([&](decltype((x)) container) { return (f)(  begin(container),  end(container), ## __VA_ARGS__); })(x)
#define rwhole(f, x, ...) ([&](decltype((x)) container) { return (f)( rbegin(container), rend(container), ## __VA_ARGS__); })(x)

#define debug(x) cerr << "(" << __LINE__ << ")" << #x << ": " << (x) << endl

constexpr i32 inf   = 1001001001;
constexpr i64 infll = 1001001001001001001ll;

constexpr i32 dx[] = {0, -1, 1, 0, -1, 1, -1, 1}; 
constexpr i32 dy[] = {-1, 0, 0, 1, -1, -1, 1, 1};

struct IoSetup { IoSetup(i32 x = 15){ cin.tie(0); ios::sync_with_stdio(0); cout << fixed << setprecision(x); cerr << fixed << setprecision(x); } } iosetup;

template <typename T = i64> T input() { T x; cin >> x; return x; }

template <typename T> ostream &operator<<(ostream &os, vector<T> &v) { range(i, 0, v.size()) { os << v[i] << (i + 1 != (int)v.size() ? " " : ""); } return os; } 
template <typename T> istream &operator>>(istream &is, vector<T> &v) { for (T &in : v) is >> in; return is; }

template <typename T1, typename T2> ostream &operator<<(ostream &os, pair<T1, T2> p) { os << "(" << p.first << ", " << p.second << ")"; return os; }
template <typename T1, typename T2> istream &operator>>(istream &is, pair<T1, T2> &p) { is >> p.first >> p.second; return is; }

template <typename T> vector<T> make_vector(size_t a, T b) { return vector<T>(a, b); }
template <typename... Ts> auto make_vector(size_t a, Ts... ts) { return vector<decltype(make_vector(ts...))>(a, make_vector(ts...)); }

template <typename T1, typename T2> inline bool chmax(T1 &a, T2 b) { return a < b && (a = b, true); }
template <typename T1, typename T2> inline bool chmin(T1 &a, T2 b) { return a > b && (a = b, true); }
// }}}

void solve() {
  int n = input(), k = input();

  i64 ans = 0;
  range(i, 1, n + 1) range(j, 1, k + 1) {
    ans += 100 * i + j;
  }

  cout << ans << endl;
}

signed main() {
  solve();
}
