水题：
#include<stdio.h>
#include <iostream>
#include<string.h>
#include<stdlib.h>
#include<math.h>
#include<algorithm>
#include<list>
#include<vector>
#pragma comment(linker,"/STACK:102400000,102400000")
using namespace std;int main(){int i,k,j,l,t,n,count=1;char s[1000];scanf("%d",&n);getchar();while(n--){gets(s);l=strlen(s);for(i=0;i<l;i++){if(s[i]=='/'&&s[i+1]=='/'){j=i+2;break;}}for(k=j;k<l;k++){if(s[k]=='/'||s[k]==':'){t=k;break;}}printf("Case #%d: ",count++);for(j=i+2;j<t;j++)printf("%c",s[j]);printf("\n");}return 0;}