#include <fstream>
using namespace std;
ifstream in("barbar.in");
ofstream out("barbar.out");
int dx[]={0,-1,0,1,0},inf=2000000,dy[]={0,0,1,0,-1},a,b;
void coada1(){
    int p=1;
    int u=b;
    while(p<=u){

        }
    }
int main()
{
    in>>n>>m;
    for(i=1;i<=n;i++)
        for(j=1;j<=m;j++){
            in>>ch;
            if(ch=='.'){
                a[i][j]=1;
                b[i][j]=inf;
                continue;}
            if(ch=='*'){
                a[i][j]=0;
                b[i][j]=-1;
                continue;
                }
            if(ch=='D'){
                a[i][j]=1;
                cod[0][a]=i;
                cod[0][b]=j;
                b[i][j]=0;
                a++;b++;
                continue;}
            if(ch=='I'){
                a[i][j]=1;
                b[i][j]=inf;
                s1=i;s2=j;
                continue;}
            if(ch=='O'){
                a[i][j]=1;
                b[i][j]=inf;
                f1=i;f2=j;
                continue;}}




    return 0;
}