#include<bits/stdc++.h>
using namespace std;
#define time chrono::system_clock::now().time_since_epoch().count()
mt19937_64 rnd(time);
#define maxn 1000005
#define int long long

int read() {int x;cin>>x;return x;}

signed main()
{
	ios::sync_with_stdio(false);
	cin.tie(0);cout.tie(0);
	auto check = [&](int year) {
		if(year % 400 == 0 || (year % 4 == 0 && year % 100 != 0)) return 1;
		return 0;
	};
	int mon[13] = {0,31,28,31,30,31,30,31,31,30,31,30,31};
	int y = read();
	int week = 6;
	vector<int>ans(3000);
	for(int i = 2022; i >= 1970; i--) {
		int ok = check(i);
		int f = 365 + ok;
		week = (week - f) % 7;
		week = (week + 7) % 7;
	}
	for(int i = 1970; i <= 2037; i++) {
		// cout << i << " " << week <<"\n";
		int ok = check(i), now = 0;
		for(int j = 1; j <= 12; j++) {
			int x = mon[j];
			if(j == 2 && ok == 1) x += 1;
			int las = (6 - week + 1);
			int res = 1;
			week = (week + x) % 7;
			x -= las;
			res += (x + 6) / 7;
			now += res;
		}
		ans[i] = now;
	}
	cout << ans[y];
	return 0;
}