#include <bits/stdc++.h>
using namespace std;

#define ll long long
#define all(x) x.begin(), x.end()
#define pb push_back
#define mp make_pair
#define ps push
#define in insert
#define f first
#define s second
#define nl cout<<"\n"
#define ca(v) for(auto i:v) cout<<i<<" ";
#define cbit(x) __builtin_popcount(x)
#define gcd(a, b) __gcd(a, b)
#define lcm(a, b) (a*b/gcd(a, b))
const int xm[4] = {-1, 1, 0, 0};
const int ym[4] = {0, 0, -1, 1};
const int MOD = 1e9 + 7;
const int MAXN = 5e5 + 5;
const ll POW = 9973;

int main()
{
    ios_base::sync_with_stdio(0); cin.tie(0);
    if (fopen("input.in", "r")) {
        freopen("input.in", "r", stdin);
        freopen("output.out", "w", stdout);
    }
    int y; cin>>y;
    // 2023 : starts on sunday (%7 = 6)
    vector<int> days = {31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31};
    int d = 6;
    if(y >= 2023){
        for(int i=2023; i<y; i++){
            d = d + 365;
            if(i % 4 == 0) d += 1;
            d %= 7;
        }
    }
    else{
        for(int i=2022; i>=y; i--){
            d = d - 365;
            if(i % 4 == 0) d -= 1;
            d %= 7;
            d = (d + 7) % 7;
        }
    }
    int r = 0;
    for(int i=0; i<12; i++){
        int p = days[i] + ((i == 1 && y % 4 == 0) ? 1 : 0);
        int e = d + p - 1 + 7;
        e %= 7;
        r += 2;
        p -= (7 - d) + (e + 1);
        r += p / 7;
        d = (e + 1) % 7;
    }
    cout<<r;
}