#include<iostream> // cin\cout\endl #include<cstdio> //scanf()\printf() #include<cstring> // strcpy()\strcat()\strcmp()\strlen()\memset() #include<queue> #include<cmath> //sqrt()\pow()\abs()\ceil()\floor()\max()\min() using namespace std; int main(){ int n,b=0; cin>>n; int a[n]; for(int i=0;i<n;i++) cin>>a[i]; if(n%2==0){ for(int i=0;i<n;i++){ if(i%2==0) cout<<a[i+1]<<" "; else cout<<a[i-1]<<" "; }} else{ for(int i=0;i<n-1;i++){ if(i%2==0) cout<<a[i+1]<<" "; else cout<<a[i-1]<<" "; }cout<<a[n-1]; } return 0; }