#include "stdio.h"

int main(){ int n; int a[100]; while(scanf("%d",&n)!=EOF){ for(int i=0;i<n;++i) scanf("%d",&a[i]); if(a[0]>a[1]||a[0]<a[1]) printf("%d ",0); for(int i=1;i<n-1;++i){ if((a[i-1]>a[i]&&a[i]<a[i+1])||(a[i-1]<a[i]&&a[i]>a[i+1])) printf("%d ",i); }
if(a[n-1]>a[n-2]||a[n-1]<a[n-2]) printf("%d ",n-1); printf("\n"); }

}