#include <iostream> using namespace std; int main() { int n, a[105] = {}; cin >> n; for (int i = 0; i < n; i++) { cin >> a[i]; } int *p = a; for (int i = 0; i < n; i++) { if (*p % 2 == 0) { *p -= 1; } else { *p += 1; } cout << *p << " "; p++; } return 0; }