#include <stdio.h>

int main(){
	int tc, n;
	scanf("%d", &tc);
	for(int i=1;i<=tc;i++){
		scanf("%d", &n);
		int count, price=0, size[n];
		char c[n];
		for(int j=0;j<n;j++){
			scanf(" %c %d", &c[j], &size[j]);
		}
		for(int j=0;j<n;j++){
			count = 1;
			for(int k=j+1;k<n;k++){
				if(size[k]==-1){
					continue;
				}
				if(c[j]==c[k] && size[j]==size[k]){
					size[k] = -1;
					count++;
				}
			}
			price+=count/2*10;
		}
		printf("Case #%d: %d\n", i, price);
	}
	return 0;
}