#include<bits/stdc++.h>
#define sqr(x) ((x)*(x))
#define ll long long
#define ull unsigned long long
#define ui unsigned int
#define ld long double
#define vi vector<int>
#define HEAP(...) priority_queue<__VA_ARGS__ >
#define heap(...) priority_queue<__VA_ARGS__,vector<__VA_ARGS__ >,greater<__VA_ARGS__ > > 
#define pii pair<int,int> 
#define pb push_back
#define mp make_pair
#define debuge cerr<<"isok"<<endl
#define debug(x) cerr<<#x<<"="<<x<<endl
#define dprintf(...) fprintf(stderr,__VA_ARGS__)
#define SS second
#define FF first
#define ls (k<<1)
#define rs (k<<1|1)
#define clr(a,x) memset(a,x,sizeof(a))
#define cpy(a,x) memcpy(a,x,sizeof(a))
#define file(x) freopen(x".in","r",stdin),freopen(x".out","w",stdout)
#define SZ(x) ((int)x.size())
using namespace std;
template<class T> inline void gmin(T &x,const T &y){if(x>y) x=y;}
template<class T> inline void gmax(T &x,const T &y){if(x<y) x=y;}
const int BufferSize=1<<16;
char buffer[BufferSize],*Bufferhead,*Buffertail;
bool Terminal;
inline char Getchar(){
	if(Bufferhead==Buffertail){
		int l=fread(buffer,1,BufferSize,stdin);
		if(!l){Terminal=1;return 0;}
		Buffertail=(Bufferhead=buffer)+l;
	}
	return *Bufferhead++;
}
template<class T>inline bool read(T &x){
	x=0;char c=Getchar(),rev=0;
	while(c<'0'||c>'9'){rev|=c=='-';c=Getchar();if(Terminal)return 0;}
	while(c>='0'&&c<='9') x=x*10+c-'0',c=Getchar();
	if(c=='.'){
		c=Getchar();double t=0.1;
		while(c>='0'&&c<='9') x=x+(c-'0')*t,c=Getchar(),t=t/10;
	}
	x=rev?-x:x;
	return 1;
}
template<class T1,class T2> inline bool read(T1 &x,T2 &y){return read(x)&read(y);}
template<class T1,class T2,class T3> inline bool read(T1 &x,T2 &y,T3 &z){return read(x)&read(y)&read(z);}
template<class T1,class T2,class T3,class T4> inline bool read(T1 &x,T2 &y,T3 &z,T4 &w){return read(x)&read(y)&read(z)&read(w);}
inline bool reads(char *x){
	char c=Getchar();
	while(c<33||c>126){c=Getchar();if(Terminal)return 0;}
	while(c>=33&&c<=126) (*x++)=c,c=Getchar();
	*x=0;return 1;
}
template<class T>inline void print(T x,const char c='\n'){
	if(!x){putchar('0');putchar(c);return;}
	if(x<0) putchar('-'),x=-x;
	int m=0,a[20];
	while(x) a[m++]=x%10,x/=10;
	while(m--) putchar(a[m]+'0');
	putchar(c);
}
//--------------------------------head---------------------------------------------

const int inf=0x3f3f3f3f;
const int N=105,M=100005,mod=1e9+7;
template<class T,class S> inline void ch(T &x,const S y){x=(x+y)%mod;}
inline int exp(int x,int y,const int mod=::mod){
	int ans=1;
	while(y){
		if(y&1) ans=(ll)ans*x%mod;
		x=(ll)x*x%mod;y>>=1;
	}return ans;
}

int n,m,ans,ex,ey;
short s[N][N],dp[N][N][N][N];
char str[N][N];

inline bool in(int l,int r,int x){return l<=x&&x<=r;}
inline short Get(int x1,int y1,int x2,int y2){
//	dprintf("%d %d %d %d\n",x1,y1,x2,y2);
	if(x1>x2||x1<1||x2>n) return -10000;
	if(y1>y2||y1<1||y2>m) return -10000;
//	dprintf("%d %d %d %d %d\n",x1,y1,x2,y2,s[x2][y2]-s[x1-1][y2]-s[x2][y1-1]+s[x1-1][y1-1]);
	return s[x2][y2]-s[x1-1][y2]-s[x2][y1-1]+s[x1-1][y1-1];
}

int main(){
#ifdef rqgao2014
	freopen("input.txt","r",stdin);
#endif
	scanf("%d%d",&n,&m);
	for(int i=1;i<=n;i++) scanf("%s",str[i]+1);
	for(int i=1;i<=n;i++)
		for(int j=1;j<=m;j++){
			if(str[i][j]=='E') ex=i,ey=j;
			s[i][j]=s[i-1][j]+s[i][j-1]-s[i-1][j-1]+(short)(str[i][j]=='o');
		}
//	dprintf("%d %d\n",ex,ey);
	short ans=0;
	dp[0][0][0][0]=0;
	for(int l1=0;l1<ex;l1++)
		for(int r1=0;r1<=n-ex;r1++)
			for(int l2=0;l2<ey;l2++)
				for(int r2=0;r2<=m-ey;r2++){
//					dprintf("%d %d %d %d\n",l1,r1,l2,r2);
					int lx=max(1+r1,ex-l1),rx=min(n-l1,ex+r1);
					int ly=max(1+r2,ey-l2),ry=min(m-l2,ey+r2);
//					if(l1&&!r1) dprintf("%d %d %d %d\n",l1,r1,lx,rx);
					if(in(1+r1,n-l1,ex-l1-1)) gmax(dp[l1+1][r1][l2][r2],(short)(dp[l1][r1][l2][r2]+Get(ex-l1-1,ly,ex-l1-1,ry)));
					if(in(1+r1,n-l1,ex+r1+1)) gmax(dp[l1][r1+1][l2][r2],(short)(dp[l1][r1][l2][r2]+Get(ex+r1+1,ly,ex+r1+1,ry)));
					if(in(1+r2,m-l2,ey-l2-1)) gmax(dp[l1][r1][l2+1][r2],(short)(dp[l1][r1][l2][r2]+Get(lx,ey-l2-1,rx,ey-l2-1)));
					if(in(1+r2,m-l2,ey+r2+1)) gmax(dp[l1][r1][l2][r2+1],(short)(dp[l1][r1][l2][r2]+Get(lx,ey+r2+1,rx,ey+r2+1)));
					gmax(ans,dp[l1][r1][l2][r2]);
//					if(dp[l1][r1][l2][r2]==4) dprintf("%d %d %d %d\n",l1,r1,l2,r2);
				}
	cout<<ans<<endl;
	return 0;
}

Measured memory_bytes: 205056