# include <bits/stdc++.h>

using namespace std;


const int N = 1e5+10;
const int inf = 1e9+7;

int main(){
       int n;
      string s;
      cin >> s;

      if(s.size() % 2 == 1){
             string b = s;b[s.size() / 2] = 'z';
             string ss = b;
             reverse(ss.begin(), ss.end());
             if(ss == b){
                    puts("YES");
                       return 0;
             }
      }
      for(int i = 0;i < s.size() / 2;i ++)
      {
               string b = s;
               if(s[i] != s[s.size() - i - 1]){
                   b[i] = s[s.size() - i - 1];
                   string ss = b;
                   reverse(ss.begin(), ss.end());
                   if(ss == b){
                       puts("YES");
                       return 0;
                   }
               }
      }
      puts("NO");
}