# include <iostream># include <cstdio># include <vector>using namespace std;char map[300][300];int c,r;void dfs(int i,int j,double &x,double &y,int &total){ if(i<0||i>=r||j<0||j>c||map[i][j]=='.') return; map[i][j]='.'; total++; x+=(2*i+1)/2.0; y+=(2*j+1)/2.0; dfs(i-1,j,x,y,total); dfs(i+1,j,x,y,total); dfs(i,j-1,x,y,total); dfs(i,j+1,x,y,total);}int main(){ while(true) { vector<double> x,y; scanf("%d%d",&c,&r); if(!c&&!r) break; while(true) { int maxnum=-1; double totalx=0,totaly=0; for(int i=0;i<r;i++) scanf("%s",map[i]); for(int i=0;i<r;i++) for(int j=0;j<c;j++) if(map[i][j]=='x') { double nowx=0,nowy=0; int total=0; dfs(i,j,nowx,nowy,total); if(total>maxnum) { maxnum=total; totalx=nowx; totaly=nowy; } }x.push_back((totalx)/maxnum);y.push_back((totaly)/maxnum);scanf("%s",map[0]);if(map[0][0]=='=') break; } double resx=0,resy=0; int T=x.size()/2; for(int i=0;i<x.size()-T;i++) { resx+=(x[i+T]-x[i])/T; resy+=(y[i+T]-y[i])/T; } resx/=T; resy/=T; printf("%.2f %.2fn",resy+1e-6,resx+1e-6); } return 0;}
