#include <bits/stdc++.h>
#define rep(i, n) for (int i = 0; i < n; ++i)
typedef long long ll;
using namespace std;

int main() {
    cin.tie(0);
    ios_base::sync_with_stdio(false);

    vector<string> S(3);
    rep(i, 3) cin >> S[i];

    vector cnt(2, vector<int>(2));
    rep(i, 3) rep(j, 3) {
        if (S[i][j] == '#')
            cnt[(i + j) % 2][0]++;
        else
            cnt[(i + j) % 2][1]++;
    }

    if (cnt[0][0] == 5 && cnt[0][1] == 0 && cnt[1][0] == 0 && cnt[1][1] == 4)
        cout << "Yes\n";
    else if (cnt[0][0] == 0 && cnt[0][1] == 5 && cnt[1][0] == 4 && cnt[1][1] == 0)
        cout << "Yes\n";
    else
        cout << "No\n";

    return 0;
}