#include <bits/stdc++.h>
#define int long long
using namespace std;

ifstream fin("nrcuv.in");
ofstream fout("nrcuv.out");

const int NMAX = 1e3 + 2;

int n, m, dp[27][NMAX];
unordered_set<int> dep[27];

signed main()
{
    fin >> n >> m;
    while (m--)
    {
        char l1, l2;
        fin >> l1 >> l2;
        // cout << (int)l1 - 'a' + 1 << " " << l2 << "\n";
        dep[(int)l1 - 'a' + 1].insert((int)l2 - 'a' + 1);
        dep[(int)l2 - 'a' + 1].insert((int)l1 - 'a' + 1);
    }
    // return 0;    
    for (int i = 1; i <= 26; i++)
    {
        dp[i][1] = 1;
    }
    int prevsum = 26, cursum = 0;
    for (int i = 2; i <= n; i++)
    {
        for (int k = 1; k <= 26; k++)
        {
            dp[k][i] = prevsum;
            for(auto cif: dep[k])
            {
                dp[k][i] -= dp[cif][i - 1];
            }
            // if(i == 2)cout << dp[k][i] << "\n";
            cursum += dp[k][i];
        }
        prevsum = cursum;
        cursum = 0;
    }
    int ans = 0;
    for(int i = 1; i <= 26; i++)
    {
        ans = (ans + dp[i][n]) % 104659;
    }
    fout << ans;
    return 0;
}