#include<stdio.h>
int main()
{
    int size,ind,cnt=0;
    scanf("%d",&size);
    int arr[size];
    for(ind=0;ind<size;scanf("%d",&arr[ind++]));
    for(ind=0;ind<size;ind++)
    {
        if(arr[ind]%2==1)
        {
            arr[ind]=1;
            cnt++;
        if(cnt == size)
        {
            printf("Invalid input");
            return 0;
    }
    for(ind=0;ind<size;printf("%d ",arr[ind++]));
    return 0;
}