题解

#include<iostream>
using namespace std;
int main(){
    int m,k,sum=0;
    cin>>m>>k;
    if(m%19==0){
        int x=m;
        while(x!=0){
            if(x%10==3){
                sum++;
            }
            x/=10;
        }
        if(sum==k){
            cout<<"YES";
        }else{
            cout<<"NO";
        }
    }else{
        cout<<"NO";
    }
    return 0;
}