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