c ```cpp
#include<bits/stdc++.h>
#define ll long long
#define ull unsigned long long
#define ss string
using namespace std;
ss a;ll n[5];
int main()
{
cin>>a;
for(int i=0;i<a.size();i++){
if(a[i]=='2'||a[i]=='0'||a[i]=='1'||a[i]=='4'){
switch(a[i]){
case '2':n[1]++;
case '0':n[2]++;
case '1':n[3]++;
case '4':n[4]++;
}
}
else{
cout<<"No";
return 0;
}
}
if(n[1]==n[2]&&n[3]==n[4]&&n[2]==n[3])cout<<"Yes";
else cout<<"No";
}
