#include<fstream>
using namespace std;
int n, m, i, j, jj;
int a[26][1001], c[26][26];
char x, y;
ifstream fin("nrcuv.in");
ofstream fout("nrcuv.out");
int main(){
    fin>> n >> m;
    for(i = 1; i <= m; i++){
        fin>> x >> y;
        c[x-'a'][y-'a'] = 1;
        c[y-'a'][x-'a'] = 1;
    }
    for(i = 0; i < 26; i++){
        a[i][1] = 1;
    }
    for(i = 2; i <= n; i++){
        for(j = 0; j < 26; j++){
            for(jj = 0; jj < 26; jj++){
                if(c[j][jj] == 0){
                    a[j][i] += a[jj][i-1] % 104659;
                    a[j][i] %= 104659;
 
                }
            }
        }
    }
    int sum = 0;
    for(i = 0; i < 26; i++){
        sum+= a[i][n];
    }
    fout<< sum % 104659;
    return 0;
}