#include<iostream>

 #include<string>

 #include<algorithm>

 #include<cstdlib>

 #include<cstdio>

 #include<set>

 #include<map>

 #include<vector>

 #include<cstring>

 #include<stack>

 #include<cmath>

 #include<queue>

 #define clc(a,b) memset(a,b,sizeof(a))

 #include <bits/stdc++.h>

 using namespace std;

 #define LL long long

 int main()

 {

     char s[][];

     int n;

     scanf("%d",&n);

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

         scanf("%s",&s[i]);

     LL tot=;

     LL ans=;

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

     {

         tot=;

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

         {

             if(s[i][j]=='C')

                 tot++;

         }

         ans+=tot*(tot-)/;

         tot=;

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

         {

             if(s[j][i]=='C')

                 tot++;

         }

         ans+=tot*(tot-)/;

     }

     cout<<ans<<endl;

     return ;

 }