#include <bits/stdc++.h>
using namespace std;
int vis[15][15];
int dx[4] = {1,0,-1,0},dy[4] = {0,1,0,-1};
char a[15][15];
void bfs(int x,int y){
	int que[105][3],head,tail;
	head = tail = 1;
	que[head][0] = x;
	que[head][1] = y;
	que[head][2] = 0;
	vis[x][y] = 0;
	while(head<=tail){
		for(int i=0;i<4;i++){
			int nx = que[head][0]+dx[i],ny = que[head][1]+dy[i];
			if(nx>=1 && nx<=10 && ny>=1 && ny<=10 && vis[nx][ny]==-1 && a[nx][ny]!='*')
			{
				que[tail++][0] = nx;
				que[tail][1] = ny;
				que[tail][2] = que[head][2]+1;
				vis[nx][ny] = que[head][2]+1;
			}
		}
	}
}
int main(){
	for(int i=1;i<=10;i++){
		for(int j=1;j<=10;j++){
			cin >> a[i][j];
		}
	}
	for(int i=1;i<=10;i++){
		for(int j=1;j<=10;j++){
			if(a[i][j]!='*'){
				bfs(i,j);
			}
		}
	}
}