#include <fstream>

using namespace std;

int h,w;
int rec[101][101][4],x[2],y[2];
char ch[101][101];
bool pro[101][101][4],boo[101][101][4];

inline int min(int a, int b)
{
	return a>b ? b:a;
}

int go(int i,int j,int dir)
{
	boo[i][j][dir]=true;
	if (i<0 || j<0 || i>=h || j>=w || ch[i][j]=='*' || pro[i][j][dir])
		return 10000000;

	if (boo[i][j][dir])
		return rec[i][j][dir];

	if (i==x[1] && j==y[1])
		return 0;

	pro[i][j][dir]=true;
	if (dir==0)
		rec[i][j][dir]=min(go(i+1,j,0),
						   min(go(i,j+1,2)+1,go(i,j-1,3)+1));
	else if (dir==1)
		rec[i][j][dir]=min(go(i-1,j,1),
						   min(go(i,j+1,2)+1,go(i,j-1,3)+1));
	else if (dir==2)
		rec[i][j][dir]=min(min(go(i+1,j,0)+1,go(i-1,j,1)+1),
						   go(i,j+1,2));
	else if (dir==3)
		rec[i][j][dir]=min(min(go(i+1,j,0)+1,go(i-1,j,1)+1),
						   go(i,j-1,3));
	pro[i][j][dir]=false;
						   
	return rec[i][j][dir];
}

int main(void)
{
	ifstream fin("lphone.in");
	ofstream fout("lphone.out");

	fin>>w>>h;
	for (int i=0; i<h; i++)
		for (int j=0; j<w; j++)
		{
			fin>>ch[i][j];
			if (ch[i][j]=='C')
			{
				if (x[0])
					x[1]=i, y[1]=j;
				else
					x[0]=i, y[0]=j;
			}
		}

	fout<<min(min(go(x[0],y[0],0),go(x[0],y[0],1)),
			 min(go(x[0],y[0],2),go(x[0],y[0],3)));

	return 0;
}