#include <fstream>
#include <cstring>
using namespace std;
ifstream f("rj.in");
ofstream g("rj.out");
struct poz
{
    short x,y;
};
short i,j,n,m,x1,x2,y1,y2;
int mat1[105][105];
int mat2[105][105];
char x[106];
int dx[]={-1,-1,0,1,1,1,0,-1};
int dy[]={0,1,1,1,0,-1,-1,-1};
poz t,ts,coada[10500];
void lee1()
{
    p=1;
}
int main()
{
    f>>n>>m;
    f.get();
    for(i=1;i<=n;i++)
    {
        f.getline(x,105);
        for(j=1;j<=m;j++)
        {
            if(x[j]=='X')
            {
                mat1[i][j]=-1;
                mat2[i][j]=1;
            }
            else
            {
                if(x[j]=='R')
                {
                    x1=i;
                    y1=j;
                    mat1[i][j]=-1;
                }
                else
                {
                    if(x[j]=='J')
                    {
                        x2=i;
                        y2=j;
                        mat2[i][j]=1;
                    }
                }
            }
        }
    }
    f.close();
    g.close();
    return 0;
}