#include <iostream>
using namespace std;

int main() {
    const int n = 5;
    int arr[n]={0, 9, 0, 8, 1};
    int j=0;
	for (int i = 0; i < n; i++) {
        if (arr[i] != 0) {
            int temp = arr[i]; 
            arr[i] = arr[j];
            arr[j] = temp;
            j++;
        }
    }
    for (int i = 0; i < n; i++) {
        printf("%d ", arr[i]); 
    }
	return 0;
}