#include <iostream>

using namespace std;
const int N=20, M=20;

bool Matrixban(int x, int y, int n, int m)
{
    return 0<=x && x<n && 0<=y && y<m;
}

bool keres(int x, int y, int celx, int cely, char lab[N][M])
{
    if (x==celx && y==cely)
        return true;
    lab[x][y]='*';
    if (Matrixban(x-1, y, celx+1, cely+1) && lab[x-1][y]=='.')
        if (keres(x-1, y, celx, cely, lab))
           return true;
    if (Matrixban(x, y+1, celx+1, cely+1) && lab[x][y+1]=='.')
        if (keres(x, y+1, celx, cely, lab))
           return true;
    if (Matrixban(x+1, y, celx+1, cely+1) && lab[x+1][y]=='.')
        if (keres(x+1, y, celx, cely, lab))
           return true;
    if (Matrixban(x, y-1, celx+1, cely+1) && lab[x][y-1]=='.')
        if (keres(x, y-1, celx, cely, lab))
           return true;

    return false;

}
int main()
{
    int n, m;
    cin>>n>>m;
    char lab[N][M];
    for (int i=0; i<n; i++)
        for (int j=0; j<m; j++)
           cin>>lab[i][j];
    if (keres(0, 0, n-1, m-1, lab))
        cout<<"igen";
    else
        cout<<"nem";
    return 0;
}