真的，真的，整不会了……

本蒟蒻已经多次修改，已尽我所能……各位大佬还请帮本蒟蒻一把……

下面是代码

```cpp
#include <iostream>

using namespace std;

int main()
{
	int a, b, y, m, d, c, f[8], num = 0, weiquan = 10000000, e = 0, day[14] = {0, 31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31, 29};
	cin >> a >> b;
	for (int i = a; i <= b; i++)
	{
		e = 0;
		weiquan = 10000000;
		y = i / 10000;
		m = i % 10000 / 100;
		d = i % 100;
		if (m > 12)
		{
			i = i + 8800 - d;
			continue;
		}
		if (d > day[m] && (y % 4 != 0 || y % 100 == 0 && y % 400 != 0))
		{
			i = i + 100 - d;
			continue;
		}
		if (m == 2 && d > day[13] && (y % 4 == 0 && y % 100 != 0 || y % 400 == 0))
		{
			i = i + 100 - d;
			continue;
		}
		c = i;
		for (int j = 0; j < 8; j++)
		{
			f[j] = c % 10;
			c /= 10;
			e = e + f[j] * weiquan;
			weiquan /= 10;
		}
		y = i / 10000;
		m = i % 10000 / 100;
		d = i % 100;
		if (m > 12)
		{
			continue;
		}
		if (d > day[m] && (y % 4 != 0 || y % 100 == 0 && y % 400 != 0))
		{
			continue;
		}
		if (m == 2 && d > day[13] && (y % 4 == 0 && y % 100 != 0 || y % 400 == 0))
		{
			continue;
		}
		//cout << e << ' ' << i << endl;
		if (e == i)
		{
			num++;
		}
	}
	cout << num;
	return 0;
}