#include<bits/stdc++.h>
#define ll long long
#define ull unsigned long long
#define fr first
#define se second
#define FAST ios::sync_with_stdio(false), cin.tie(0), cout.tie(0)
using namespace std;
int n,a[100005];
stack<int> s;
int main(){
	FAST;
	int v;
	for(int v=1;cin>>n;v++){
		int ans=0;
		for(int i=1;i<=n;i++){
			cin>>a[i];
			while(!s.empty()&&a[i]<s.top()){
				ans++;
			}
			while(s.empty()&&a[i]==s.top()) s.pop();
			if(a[i]!=0) s.push(a[i]);
		}
		ans+=s.size();
		printf("Case %d: %d\n",v,ans);
	}
	return 0;
}