题解

#include<cstdio>
#include<iostream>
#include<cmath>
using namespace std;
int rn(int a){
	if(a%4==0&&(a%400==0||a%100!=0))return 1;
    return 0;
}
int hw(int x){
	int a=0,x1=x;
	while(x1){
		a+=x1%10;
		x1/=10;
		a*=10;
	}
	a/=10;
	if(a==x)return 1;
	return 0;
}
int main(){
	int a;
    cin>>a;
    if(hw(a)==1&&rn(a)==1)cout<<"Yes";
    else cout<<"No";
	return 0;
}