是爱坤点赞

参考勿复制，看着写一遍也好
#include <iostream>
using namespace std;
int main(){
int n;
cin>>n;
int c=n%100%10;
int b=(n%100-c)/10;
int a=(n-b-c)/100;
cin>>a>>b>>c;
if(aaa+bbb+ccc==n){
cout<<"YES";
}else{
cout<<"NO";
}
return 0;
}