#include<cstdio>
#include<cctype>
#include<cmath>
#include<cstring>
#include<iostream>
#include<algorithm>
#include<climits>
#include<map>
using namespace std;

const int maxn = 12;
char maps[12][12] = {
		{'*','*','*','*','*','*','*','*','*','*','*','*'},
		{'*','.','.','.','.','.','.','.','.','.','.','*'},
		{'*','.','.','.','.','.','.','.','.','.','.','*'},
		{'*','.','.','.','.','.','.','.','.','.','.','*'},
		{'*','.','.','.','.','.','.','.','.','.','.','*'},
		{'*','.','.','.','.','.','.','.','.','.','.','*'},
		{'*','.','.','.','.','.','.','.','.','.','.','*'},
		{'*','.','.','.','.','.','.','.','.','.','.','*'},
		{'*','.','.','.','.','.','.','.','.','.','.','*'},
		{'*','.','.','.','.','.','.','.','.','.','.','*'},
		{'*','.','.','.','.','.','.','.','.','.','.','*'},
		{'*','*','*','*','*','*','*','*','*','*','*','*'}
};

struct Animal
{
	char name;
	char towards;
	bool isAPeriod;
	int x;
	int y;
	int startPointX;
	int startPointY;
	Animal(char n)
	{
		name = n;
		towards = 'w';
		isAPeriod = false;
	}
	void getXY(int a, int b)
	{
		x = a;
		y = b;
		startPointX = a;
		startPointY = b;
	}
	void ChangeTowards()
	{
		switch (towards)
		{
		case 'w':
			towards = 'd';
			break;
		case 'd':
			towards = 's';
			break;
		case 's':
			towards = 'a';
			break;
		case 'a':
			towards = 'w';
			break;
		default:
			break;
		}
	}
	void moved(int a, int b)
	{
		if (a == startPointX && b == startPointY && towards == 'w')
		{
			isAPeriod = true;
		}
		x = a;
		y = b;
	}
	void move()
	{
		if (towards == 'w')
		{
			if (maps[x - 1][y] != '*')
			{
				maps[x][y] = '.';
				maps[x - 1][y] = name;
				moved(x - 1, y);
			}
			else
			{
				ChangeTowards();
			}
		}
		else if (towards == 'd')
		{
			if (maps[x][y + 1] != '*')
			{
				maps[x][y] = '.';
				maps[x][y + 1] = name;
				moved(x, y + 1);
			}
			else
			{
				ChangeTowards();
			}
		}
		else if (towards == 's')
		{
			if (maps[x + 1][y] != '*')
			{
				maps[x][y] = '.';
				maps[x + 1][y] = name;
				moved(x + 1, y);
			}
			else
			{
				ChangeTowards();
			}
		}
		else
		{
			if (maps[x][y - 1] != '*')
			{
				maps[x][y] = '.';
				maps[x][y - 1] = name;
				moved(x, y - 1);
			}
			else
			{
				ChangeTowards();
			}
		}
	}
}Cow('C'), Farmer('F');

int main() {
	int step = 0;
	bool catched = false;
	for (int i = 1; i <= 10; i++)
	{
		char atemp;
		for (int j = 1; j <= 10; j++)
		{
			char temp;
			scanf("%c", &temp);
			maps[i][j] = temp;
			if (temp == '.')
			{
				continue;
			}
			else
			{
				maps[i][j] = temp;
			}
			if (temp == 'C')
			{
				Cow.getXY(i, j);
			}
			else if (temp == 'F')
			{
				Farmer.getXY(i, j);
			}
		}
		scanf("%c", &atemp);
	}
	while (Cow.isAPeriod != true || Farmer.isAPeriod != true)
	{
		Cow.move();
		Farmer.move();
		step++;
		if (Cow.x == Farmer.x && Cow.y == Farmer.y)
		{
			catched = true;
			break;
		}
	}
	if (catched)
	{
		printf("%d", step);
	}
	else
	{
		printf("%d", 0);

	}
	return 0;
}