题解

#include <bits/stdc++.h>
using namespace std;
int main(){
bool pd=true;
string s;
cin>>s;
int len=s.size();
for(int i=0;i<len;i++)
if(s[i]!=s[len-i-1]) pd=false;
if(pd==true) cout<<"Yes"<<endl;
else cout<<"No"<<endl;
return 0;
}