# include <cstdio>
# include <iostream>

using namespace std;

int main ()
{
    int year;
    cin >> year;
    if(year % 100 == 0 && year % 400 == 0 || year % 100 //不等于零，不被100整除，可以不写！= 0// 
    && year % 4 == 0)
    cout << "yes" << endl;
    else cout << "no" << endl;
    return 0;

}

#include <cstdio>

int main()
{
    double salary;
    scanf("%lf", &salary);

    double x;

    if (salary <= 400) x = 0.15;
    else if (salary <= 800) x = 0.12;// 0-400;400-800这样写简洁 //
    else if (salary <= 1200) x = 0.1;
    else if (salary <= 2000) x = 0.07;
    else x = 0.04;

    printf("Novo salario: %.2lf\n", salary * (1 + x));
    printf("Reajuste ganho: %.2lf\n", salary * x);
    printf("Em percentual: %.0lf %%", x * 100);// %%是%的转义，比较特殊 //

    return 0;
}