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