#include <bits/stdc++.h>   int main() {     int n;     int a[10000];     while (scanf( %d , &n) != EOF) {       for (int i = 1; i <= n; i++) scanf( %d , &a[i]);       for (int i = 1; i <= n; i++) {         if (a[i] % 2 == 0) a[i] -= 1;       }       for (int i = 1; i <= n - 1; i++) printf( %d  , a[i]);       printf( %d n , a[n]);     }     return 0;   }   