poj 4067: 迴文數字

#include<iostream>
#include<cstring>
using namespace std;
int main()
{
	string a;
	while(cin>>a)
	{
		string b;
		for(int i=a.length()-1;i>=0;i--)
			b += a[i];
		if(a == b)
			cout<<"YES"<<endl;
		else
			cout<<"NO"<<endl;
	}
	return 0;
}