#include <bits/stdc++.h>
using namespace std;
using ll = long long;
using pll = pair<ll, ll>;
#define drep(i, cc, n) for (ll i = (cc); i <= (n); ++i)
#define rep(i, n) drep(i, 0, n - 1)
#define all(a) (a).begin(), (a).end()
#define pb push_back
#define fi first
#define se second

const ll MOD = 1000000007;
const ll MOD2 = 998244353;
const ll INF = 1LL << 60;
const ll N_MAX = 2e5;

int main(){
    vector<string> s(3);
    rep(i, 3) cin >> s[i];

    bool flag1 = true;
    rep(i, 3) rep(j, 3){
        if((i+j)%2 == 0){
            if(s[i][j] == '#'){
                flag1 = false;
                break;
            }
        }else{
            if(s[i][j] == '.'){
                flag1 = false;
                break;
            }
        }
    }

    bool flag2 = true;
    rep(i, 3) rep(j, 3){
        if((i+j)%2 == 0){
            if(s[i][j] == '.'){
                flag2 = false;
                break;
            }
        }else{
            if(s[i][j] == '#'){
                flag2 = false;
                break;
            }
        }
    }

    if(flag1 || flag2) cout << "Yes" << endl;
    else cout << "No" << endl;
}