#include <stdio.h>
#include <atcoder/all>
#include <bits/stdc++.h>
using namespace std;
using namespace atcoder;
using mint = modint998244353;
#define rep(i,n) for (int i = 0; i < (n); ++i)
#define Inf32 1000000005
#define Inf64 1000000000000000001LL
void dfs(vector<int> a,vector<vector<int>> aa,int ci){
	if(ci==aa.size()){
		cout<<"Yes"<<endl;
		exit(0);
	}
	rep(i,8){
		auto b = a;
		bool f = true;
		rep(j,8){
			b[j] -= aa[ci][(j+i)%8];
			if(b[j]<0){
				f = false;
				break;
			}
		}
		if(f){
			dfs(b,aa,ci+1);
		}
	}
}
int main(){
	
	vector<vector<int>> a(8,vector<int>(8));
	rep(i,8){
		string s;
		cin>>s;
		rep(j,8)a[i][j] = s[j]-'0';
	}
	int sum = 0;
	rep(i,8){
		rep(j,8){
			if(i==0)sum += a[i][j];
			else sum -= a[i][j];
		}
	}
	if(sum!=0){
		cout<<"No"<<endl;
		return 0;
	}
	dfs(a[0],a,1);
	cout<<"No"<<endl;
}