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

typedef long long ll; typedef unsigned long long ull;
const int inf = 1e9; const ll llnf = 4e18;

template< class Tp > void chkmax( Tp &x , Tp y ) { x = max( x , y ); }
template< class Tp > void chkmin( Tp &x , Tp y ) { x = min( x , y ); }

void solve( ) {
	int _1970_1_1_ = 3; vector< int > days{ 0 , 31 , 28 , 31 , 30 , 31 , 30 , 31 , 31 , 30 , 31 , 30 , 31 };
	auto leap_year = [&] ( int y ) -> bool { return ( y % 400 == 0 ) || ( y % 4 == 0 && y % 100 != 0 ); } ;
	auto _y_1_1_ = [&] ( int y ) -> int { int t = _1970_1_1_; for( int Y = 1970; Y < y; Y ++ ) t += 365 + leap_year( Y ) , t %= 7; return t; } ;

	int Y; cin >> Y; int ans = 0 , t = _y_1_1_( Y );
	for( int X = 1; X <= 12; X ++ ) {
		int w = 1; int maxZ = days[X] + ( X == 2 ? leap_year( Y ) : 0 ); 
		for( int Z = 1; Z <= maxZ; Z ++ ) { if( t % 7 == 6 ) t = 0 , w += ( Z < maxZ ); else t ++; }
		ans += w;
	}
	cout << ans << "\n";
}

int main( ) {
	ios::sync_with_stdio( 0 ), cin.tie( 0 ), cout.tie( 0 );
	int T = 1; while( T -- ) solve( ); return 0;
}