#include <bits/stdc++.h>
using namespace std;
ifstream fin("lol.in");
ofstream fout("lol.out");
char c;
int m[10][10], ok;
int main() {
  ios::sync_with_stdio(false);
  for (int i = 1; i <= 6; ++i) {
    m[1][i] = m[6][i] = 100;
    m[i][1] = m[i][6] = 100;
  }
  for (int i = 2; i <= 5; ++i) {
    for (int j = 2; j <= 5; ++j) {
      cin >> c;
      if (c == 'x') m[i][j] = 1;
      if (c == 'o') m[i][j] = 100;
    }
  }
  for (int i = 2; i <= 5; ++i) {
    for (int j = 2; j <= 5; ++j) {
      if (m[i][j] + m[i + 1][j] + m[i + 2][j] == 2) ok = 1;
      if (m[i][j] + m[i + 1][j + 1] + m[i + 2][j + 2] == 2) ok = 1;
      if (m[i][j] + m[i + 1][j - 1] + m[i + 2][j - 2] == 2) ok = 1;
      if (m[i][j] + m[i][j + 1] + m[i][j + 2] == 2) ok = 1;
      if (ok == 1) {
        cout << "YES";
        return 0;
      }
    }
  }
  if (ok == 1) {
    cout << "YES";
    return 0;
  } else
    cout << "NO";
  return 0;
}
