solution
function divisible (i, j) {
return !(i % j)
}
function solve (year) {
// Complete this function
let date = [13, '09', year]
if (year === 1918) {
date[0] = 26
} else if (year > 1918) {
if (divisible(year, 400) || (divisible(year, 4) && !divisible(year, 100))) {
date[0]--
}
} else if (divisible(year, 4)) {
date[0]--
}
return date.join('.')
}
function main () {
var year = parseInt(readLine())
var result = solve(year)
process.stdout.write('' + result + '\n')
}