#include<stdio.h> int main(){ int a,b,v[100],i,j,c=0; scanf("%d",&a); for(b=0;b<a;b++){scanf("%d",&v[b]); } for(i=0;i<a;i++){for(j=0;j<=i;j++){ if(v[j]<v[i]){c++;}} printf("%d",c); c=0; } return 0;}