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