public static void main(String[] args) {

Scanner scn = new Scanner(System.in);

int n = scn.nextInt();

int m = scn.nextInt();

int[][]arr = new int[n][m];

for(int i = 0 ; i<n ; i++){

for(int j = 0 ; j< m ;j ++){

arr[i][j] = scn.nextInt();

}

}

boolean[][] visited = new boolean[n][m];

floodfill(arr , 0 , 0 ,"", visited);

}

public static void floodfill(int[][] maze , int row, int col , String asf, boolean[][] visited){

if(row < 0 || col < 0 || row == maze.length || col == maze[0].length || maze[row][col] ==1 || visited [row][col] == true){

return;

}

else if(row == maze.length-1 && col == maze[0].length -1 ){

System.out.println(asf);

return;

}

visited[row][col] = true;

floodfill(maze , row -1 , col ,asf+"t" , visited);

floodfill(maze , row , col -1,asf+"l" , visited);

floodfill(maze , row+1 , col ,asf+"d" , visited);

floodfill(maze , row , col+1 ,asf+"r" , visited);

visited[row][col] = false;

}