题解

#include<iostream>
using namespace std;
int main(){
    for(int i=2;i<=100;i++){
        int x=i;
        bool zhi=0,you3=0;
        for(int j=2;j<i;j++){
            if(i%j==0){
                zhi=1;
                break;
            }
        }
        while(x!=0){
            if(x%10==3){
                you3=1;
                break;
            }
            x/=10;
        }
        if(zhi==0&&you3==1){
            cout<<i<<'\n';
        }
    }
    return 0;
}