#include <bits/stdc++.h>
#define ll long long
#define fi first
#define se second
#define endl '\n'
#define MASK(i) (1LL << (i))
#define ull unsigned long long
#define ld long double
#define pb push_back
#define all(x) (x).begin() , (x).end()
#define BIT(x , i) ((x >> (i)) & 1)
#define TASK "task"
#define sz(s) (int) (s).size()
 
using namespace std;
const int mxN = 5e5 + 227;
const int inf = 1e9 + 277;
const int mod = 1e9 + 7;
const ll infll = 1e18 + 7;
const int base = 307;
const int LOG = 20;
 
template <typename T1, typename T2> bool minimize(T1 &a, T2 b) {
    if (a > b) {a = b; return true;} return false;
}
template <typename T1, typename T2> bool maximize(T1 &a, T2 b) {
    if (a < b) {a = b; return true;} return false;
}
 
int y;
int d[12] = {31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31};

int getNumDay(int month, int year) {
    if(year % 400 == 0 || (year % 4 == 0 && year % 100 != 0)) {
        if(month == 2) return 29;
    }
    return d[month - 1];
}
 
void solve()
{
    cin >> y;

    int curY = 2023;
    int curDay = 1;
    int curMonth = 1;
    int cur = 6;

    while(curY != y || curDay != 1 || curMonth != 1) {
        if(curY < y) {
            cur = (cur + 1) % 7; 
            ++curDay;
            if(curDay > getNumDay(curMonth, curY)) {
                curDay = 1;
                ++curMonth;
            }
            if(curMonth > 12) {
                curMonth = 1;
                ++curY;
            }
        }
        else {
            cur = (cur - 1 + 7) % 7; 
            --curDay;
            if(curDay < 1) {
                if(curMonth == 1) {
                    --curY;
                    curMonth = 12;
                    curDay = getNumDay(curMonth, curY);
                }
                else {
                    --curMonth;
                    curDay = getNumDay(curMonth, curY);
                }
            }
        }
    }

    int res = 1;
    while(curDay != getNumDay(12, y) || curMonth != 12) {
        cur = (cur + 1) % 7; 
        if(cur == 0) ++res;
        ++curDay;
        if(curDay > getNumDay(curMonth, curY)) {
            curDay = 1;
            ++curMonth;
            if(cur != 0) ++res;
        }
        if(curMonth > 12) {
            curMonth = 1;
            ++curY;
        }
    }

    cout << res;
}
 
int main()
{
    ios_base::sync_with_stdio(false);
    cin.tie(nullptr);
    // freopen(TASK".inp" , "r" , stdin);
    // freopen(TASK".out" , "w" , stdout);
 
    int tc = 1;
    //cin >> tc;
    while(tc--) {
        solve();
    }
    return 0;
}