#include <bits/stdc++.h>
#include <atcoder/all>
using namespace std;
using namespace atcoder;
#define rep(i, n) for(int i=0;i<(n);++i)
#define rep1(i, n) for(int i=1;i<=(n);i++)
#define ll long long
using mint = modint998244353;
using P = pair<ll,ll>;
using lb = long double;
using T = tuple<ll, vector<int>, ll>;
#ifdef LOCAL
#  include <debug_print.hpp>
#  define dbg(...) debug_print::multi_print(#__VA_ARGS__, __VA_ARGS__)
#else
#  define dbg(...) (static_cast<void>(0))
#endif

int main()
{
    int n, m, k;
    cin >> n >> m >> k;
    vector<int> pow(n+1, 1);
    rep(i,n) pow[i+1] = pow[i] * (k+1);
    vector<vector<mint>> dp(pow[n], vector<mint>(n));
    dbg(pow);
    vector<vector<int>> g(n);
    rep(i,m){
        int u, v;
        cin >> u >> v;
        --u;--v;
        g[u].push_back(v);
        g[v].push_back(u);
    }
    rep(i,n) {
        dp[pow[i]][i] = 1;
    }
    rep(i,pow[n]-1) {
        rep(j,n) {
            for(int v : g[j]) {
                int cnt = (i/pow[v])%(k+1);
                if(cnt+1<=k) {
                    dp[i+pow[v]][v] += dp[i][j]; 
                }
            }
        }
    }
    mint ans = 0;
    rep(i,n) ans += dp[pow[n]-1][i];
    cout << ans.val() << endl;
    return 0;
}