include[HTML_REMOVED]
include[HTML_REMOVED]
include[HTML_REMOVED]
include[HTML_REMOVED]
using namespace std;
int main() {
int l, r; bool flag = true;
string str;
while (cin >> str) {
flag = true;
l = 0; r = str.size()-1;
for(int i = 0;i <str.size() / 2;i++)
if (str[i] != str[r - i]) {
flag = false;
break;
}
if (flag)
cout << “Yes!” << endl;
else
cout << “No!” << endl;
}
}