cpp

include <iostream>

using namespace std; int x, y, ans, i;

int kunkun(int x, int y) { for ( i = x; i <= y; i++) { if ((i % 4 == 0 && i % 100 != 0) || i % 400 == 0) { ans++; } } cout << ans << endl; }

int ikun(int x, int y) { for ( i = x; i <= y; i++) { if ((i % 4 == 0 && i % 100 != 0) || i % 400 == 0) { cout << i << " "; } } }

int main() { cin >> x >> y; kunkun(x, y); ikun(x, y); return 0; }