program bai_giai;

uses crt;

var n:longint;

begin

clrscr;

begin

write('nhap vao 1 nam:');readln(n);

if(n mod 4=0)then write('nam do co 366 ngay')else write('nam do co 365 ngay');

end;

readln;

end.

#include<iostream>
using namespace std;

int main() 
{
    int year;
    cin >> year;
    if (year % 100 == 0)
    {
        if (year % 400 == 0){
            cout << year << " la nam nhuan";
        }
        else{
            cout << year << " khong phai la nam nhuan";
        }
    }
    else if (year % 4 == 0) {
        cout << year << " la nam nhuan";
    }
    else{
        cout << year << " khong phai la nam nhuan";
    }
    return 0;
}