#include <iostream>
#include <fstream>
using namespace std;
ifstream fin("nrcuv.in");
ofstream fout("nrcuv.out");
int n,m,i,j,c[1044][30],a[30][2001],s;
char l1,l2;
int main()
{
    fin>>n>>m;
    for(i=1; i<=m; i++)
    {
        fin>>l1>>l2;
        a[l1-'a'+1][l2-'a'+1]=1;
        a[l2-'a'+1][l1-'a'+1]=1;
    }
    for(i=1; i<=n; i++)
    {
        for(j=1; j<=26; j++)
        {
            if(i==1)
            {
                c[i][j]=1;
            }
            else
            {
                for(int k=1; k<=26; k++)
                {
                    if(a[k][j]==0)
                    {
                        c[i][j]+=c[i-1][k];
                        c[i][j]=c[i][j]%104659;
                    }
               }
            }
        }
    }

    for(i=1; i<=26; i++)s+=c[n][i];
    fout<<s%104659;
    return 0;
}