#include <bits/stdc++.h> using namespace std; int a[105]; int main() { int n; int* p = a; cin >> n; for (int i = 0; i < n; i++) { cin >> a[i]; if (a[i] % 2 == 0) a[i]--; else a[i]++; } for (int i = 0; i < n; i++) { cout << *p++ << " "; } cout << endl; return 0; }