下载样例8 输出i后竟然出现

23200232

24200242

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29200292 帮忙看一下哪里有问题，谢谢！

#include<iostream>
#include<cstdio>
#include<cstring>
#include<algorithm>
#include<cmath>
using namespace std;
long long a,b;
bool Runnian(int k){
	if((k%4==0&&k%100!=0)||k%400==0){
		return true;
	}
	return false;
}
bool Huiwen(int k){
	int t=0,f=k;
	while(f!=0){
		t=t*10+f%10;
		f=f/10;
	}
	if(k==t)return true;
	else return false;
}
int sum=0;
int main(){
	cin>>a>>b;
//	20161119
	for(long long i=a;i<=b;){
		int k1=i%10000/100;
		int k2=i%100;
		if((k1==1||k1==3||k1==5||k1==7||k1==8||k1==10||k1==12)&&k2==32){
			i+=100;
			i-=31;
			int k3=i%10000/100;
			if(k3==13){
				i-=1200;
				i+=10000;
			}
		}else{
			if((k1==4||k1==6||k1==9||k1==11)&&k2==31){
				i+=100;
				i-=30;
				int k3=i%10000/100;
				if(k3==13){
					i-=1200;
					i+=10000;
				}
			}
			else{
				if(k1==2&&Runnian(i)&&k2==30){
					i+=100;
					i-=29;
					int k3=i%10000/100;
					if(k3==13){
						i-=1200;
						i+=10000;
					}
				}
				else{
					if(k1==2&&Runnian(i)&&k2==29){
						i+=100;
						i-=28;
						int k3=i%10000/100;
						if(k3==13){
							i-=1200;
							i+=10000;
						}
					}
				}
			}
		}
		if(Huiwen(i)==true){
			sum++;
		}
		i+=1;
	}
	cout<<sum;
	return 0;
}