#include<iostream>

#include<cstdio>

#include<cstring>

using namespace std;

char a[][];

int main()

{

    int n;

    scanf("%d",&n);

    getchar();

    int flag = ;

    for(int i = ;i <= n;i++)

    {

        gets(a[i]);

        if(flag)

        {

            if(a[i][] == 'O' && a[i][] == 'O')

            {

                flag = ;

                a[i][] = '+';

                a[i][] = '+';

            }

            else if(a[i][] == 'O' && a[i][] == 'O')

            {

                flag = ;

                a[i][] = '+';

                a[i][] = '+';

            }

        }

    }

    if(!flag)

    {

        printf("YES\n");

        for(int i = ;i <= n;i++)   puts(a[i]);

    }

    else        printf("NO\n");

    return ;

}