//Im Namen Gottes
#include <iostream>
#include <vector>
#include <algorithm>
using namespace std;

vector<string> map;

void dfs(int x,int y)
{
  if(map[x][y]=='X')
    return;
  if(map[x][y]=='E')
    {
      cout<<"YES"<<endl;
      exit(0);
    }
  map[x][y]='X';
  dfs(x+1,y);
  dfs(x-1,y);
  dfs(x,y+1);
  dfs(x,y-1);
}

int main()
{
  string x;
  map.push_back("X");
  while(cin>>x)
    map.push_back("X"+x+"X");
  map[0]=map[1];
  for(int i=0;i<map[0].size();++i)
    map[0][i]='X';
  map.push_back(map[0]);
  for(int i=0;i<map.size();++i)
    for(int j=0;j<map.size();++j)
      if(map[i][j]=='C')
	dfs(i,j);
  cout<<"NO"<<endl;
  return 0;
}