1341 与3和5无关的数

#include<cstdio>
#include<iostream>
using namespace std;
#define b(i) (i*i)
int judge(int x){
    while(x){
        int t=x%10;
        if(t==3||t==5) return 0;
        x/=10;
    }
    return 1;
}
int main(){
    int n,sum=5;
    scanf("%d",&n);
    for(int i=3;i<=n;i++){
        if(i%3!=0&&i%5!=0&&judge(i)){
            sum+=b(i);
        }
    }
    printf("%d\n",sum);
    return 0;
}