#include <bits/stdc++.h>

using namespace std;

typedef long long ll;
template<class T> void check_min(T &a, const T &b){ a = (a < b) ? a : b; }
template<class T> void check_max(T &a, const T &b){ a = (a > b) ? a : b; }
#define all(x) (x).begin(), (x).end()

vector<int> months{0, 31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31};

bool leap_year(int y){
    return (y % 400 == 0) || (y % 4 == 0 && (y % 100 != 0));
}

int get_day_in_week(int y, int m){
    int curr_m = 1, curr_y = 2023;
    int d = 6;

    months[2] = 28;
    while(pair<int, int>{curr_y, curr_m} > pair<int, int>{y, m}){
        if(curr_m == 1){
            d -= months[12];
            d %= 7;
            d += 7;
            d %= 7;
            curr_y -= 1;
            curr_m = 12;

            if(leap_year(curr_y)){
                months[2] = 29;
            }
            else{
                months[2] = 28;
            }
        }
        else{
            d -= months[curr_m - 1];
            d %= 7;
            d += 7;
            d %= 7;

            curr_m -= 1;
        }
    }

    while(pair<int, int>{curr_y, curr_m} < pair<int, int>{y, m}){
        if(curr_m == 12){
            d += months[12];
            d %= 7;
            curr_y += 1;
            curr_m = 1;

            if(leap_year(curr_y)){
                months[2] = 29;
            }
            else{
                months[2] = 28;
            }
        }
        else{
            d += months[curr_m];
            d %= 7;

            curr_m += 1;
        }
    }

    // cout << d << " - " << y << " " << m << endl;
    return d;
}

int main(){
    ios::sync_with_stdio(false);
    cin.tie(NULL);

    int y;
    cin >> y;

    int cnt = 0;

    for(int i = 0; i < 12; ++i){
        int m = i + 1;
        int day_in_week = get_day_in_week(y, m);

        if(leap_year(y))
            months[2] = 29;
        else
            months[2] = 28;
    
        cnt += 1;
        for(int j = 2; j <= months[m]; ++j){
            ++day_in_week;
            if(day_in_week % 7 == 0)
                ++cnt;
        }
    }
    cout << cnt << "\n";
}