# include<iostream> using namespace std; int main(){ int a[100]; int n; int *p=a; cin>>n; for(int i=0;i<n;i++){ cin>>*(p+i); } for(int i=0;i<n;i++){ if(p[i]%2==0)cout<<p[i]-1; else cout<<p[i]+1; cout<<" "; } return 0; }