#include<iostream> using namespace std; int main() { for(int i=2;i<10000;i++){ if(i<10){ cout<<i<<" "; }else if(i<100){ if(i%10==i/10){ cout<<i<<" "; } }else if(i<1000){ if(i%10==i/100){ cout<<i<<" "; } }else{ if(i/1000==i%10&&i%1000/100==i/10%10){ cout<<i<<" "; } } } return 0; }