#include <iostream> #include <cmath> using namespace std; int main() { int n; cin>>n; float niz[n]; for(int i=0;i<n;i++) { cin>>niz[i]; } float nb=niz[0],nbp=0,nd=niz[0],ndp=0; for(int i=0;i<n;i++) { if(abs(0-niz[i])<abs(0-nb)) { nb=niz[i]; nbp=i; } if(abs(0-niz[i])>abs(0-nd)) { nd=niz[i]; ndp=i; } } cout<<nb<<" "<<nbp<<endl; cout<<nd<<" "<<ndp<<endl; return 0; }