#include <iostream> using namespace std; int a[101]; int main() { int n, *p = a; cin >> n; for (int i = 1; i <= n; i++) { cin >> *p; if (*p % 2 == 1) (*p)++; else (*p)--; p++; } p = a; for (int i = 1; i <= n; i++) { cout << *p << " "; p++; } return 0; }