// day of the programmer hackerrank solution javascript
function dayOfProgrammer(year) {
  // Write your code here
  if (year === 1918) return "26.09.1918";
  else if (
    (year <= 1917 && year % 4 == 0) ||
    year % 400 == 0 ||
    (year % 4 == 0) & (year % 100 != 0)
  )
    return "12.09." + year;
  else return "13.09." + year;
}