#include<iostream>
#include<cstdio>
#include<cstring>
using namespace std;
int s=0;
char map[110][110];
bool flag=false;
int num;
void init(){
	cin>>num;
	memset(map,'6',sizeof(map));
	for (int i=1;i<=num;i++)
		for (int j=1;j<=num;j++)
			cin>>map[i][j];
}
void work(int i,int j){
	if (map[i][j]=='6'||map[i][j]=='1'||map[i][j]=='3'||map[i][j]=='4'||map[i][j]=='7') return;
	else if (i==num&&j==num) 
		{
			s++;
			map[i][j]='7';
			flag=true;
			return;
	}
	else {
		s++;
		map[i][j]='7';
	}
	work(i-1,j);
	work(i,j-1);
	work(i+1,j);
	work(i,j+1);
}
int main(){
	freopen("ymxpre.in","r",stdin);
	freopen("ymxpre.out","w",stdout);
	init();
	work (1,1);
	if (flag) cout<<"yes"<<endl<<s<<endl;
	else cout<<"no"<<endl<<s<<endl;
	return 0;
}