80分，wa#8,#10

#include<iostream>
using namespace std;
int da1,da2,ans,hw[100];
bool bbb(int x){
    int n=0,s=x;
    while(s){
        n=n*10+s%10;
        s/=10;      
    }
    if (n == x) 
        return true;
    else 
        return false;
}
bool aaa(int x){
    if((x%100!=0&&x%4==0)||x%400==0)
        return true;
    else
        return false;
}
int main(){
    cin>>da1>>da2;

    for(int i=da1;i<=da2;i++){
            if(bbb(i)){
                ans++;
                cout<<i<<endl<<endl;
            }
            //cout<<i<<endl;
        int rq=i%100,nf=(i-i%10000)/10000,yf=(i-i%100-(i-i%10000))/100;
        if(yf==1||yf==3||yf==5||yf==7||yf==8||yf==10||yf==12){
            if(rq==31){
                if(yf==12){
                    if(nf%10==9){
                        if((nf%100-nf%10)/10==9){
                            i+=1000100-991231;
                        }
                        else{
                            i+=100100-91231;
                        }
                    }
                    else{
                        i+=10100;
                        i-=1231;
                    }
                }
                else{
                    i+=100;
                    i-=30;
                }
            }
        }
        else if(yf==4||yf==6||yf==9||yf==11){
            if(rq==30){
                i+=100;
                i-=30;
            }
        }
        else if(yf==2) {
            if(aaa(nf)){
                if(rq==29){
                    i+=100;
                    i-=29;
                }
            }
            else{
                if(rq==28){
                    i+=100;
                    i-=28;
                }
            }
        }
    }
    cout<<ans;
    return 0;
}