#include <iostream>
using namespace std;
int morth[13] ={0,31,28,31,30,31,30,31,31,30,31,30,31};
int idx;
bool check(int n)
{
	
	if (n % 100 > 31 || n % 100 == 0) return false;
	if (n / 100 > 12|| n / 100 == 0) return false;
	if (morth[n / 100] < n % 100) return false;
	return true;
}
bool cmp(int a, int b, int c, int d)
{
	if (a + 1 == b && b + 1 == c) return true;
	if (b + 1 == c && c + 1 == d) return true;
	return false;
}
int main()
{
	for (int i = 1; i <= 1231; i ++ )
	{
		if (check(i))
		{
			int a, b, c, d;
			a = i /1000, b = i / 100 % 10, c = i % 100 / 10, d = i % 10;
			//cout << a << " " << b << " " << c <<" " << d << endl;
			if(cmp(a,b,c,d))
			{
				cout << "2022" << a << b << c << d << endl;
				idx ++ ;
			}
		}
	}
	cout << idx << endl;
	return 0;
}