你们菜就多练哈哈哈哈哈哈

#include<iostream>
using namespace std;
int main(){
int n,sum = 0;
cin>>n;
int t = n;
while(n){
int x = n%10;
sum+=xxx;
n/=10;
}
if(sum == t){
cout<<"YES";
}else {
cout<<"NO";
}
return 0;
}