40求助

#include <bits/stdc++.h>
using namespace std;
int main(){
    int a,b,c = 0;
    scanf("%d%d",&a,&b);
    if(a%19)cout<<"NO"<<endl;
    else{
        while(a>0){
            if(a%10 == 3)c++;
            a = a/10;
        }
        if(c == b)printf("YES");
        else printf("NO");
    }
    return 0;
}