#include int main(){ int N, a, max, min, sum,i; scanf("%d",&N); scanf("%d",&a); max=min=sum=a; for(i = 1; i < N; i ++) { scanf("%d",&a); if(a>max) max=a; if(a sum+=a; } sum-=max+min; printf("%.2f\n", (float)sum/(N-2)); return 0;}
