1 #include<cstdio>
2 #include<iostream>
3 #include<cmath>
4 #include<algorithm>
5 #include<cstring>
6 #include<cstdlib>
7 #include<queue>
8 #include<vector>
9 #include<map>
10 #include<stack>
11 #include<string>
12 #define LL long long
13
14 const int MAXN=0;
15 const int MAXM=0;
16 const int INF=2000000000;
17
18 using namespace std;
19
20 int T;
21 char s[100007];
22
23 int solve(){
24 int len=strlen(s);
25 int MIN=INF;
26 int now=0;
27 int flag=0;
28 for (int i=0;i<len;i++){
29 if (s[i]=='a')
30 now++;
31 else
32 now--;
33 if (now==MIN) flag=0;
34 if (now<MIN){
35 MIN=now;
36 flag=1;
37 }
38 }
39 if (MIN>=1) return now-1;
40 if (MIN==now) return 1+abs(now);
41 return 1+now-MIN*2-flag;
42 }
43
44 int main(){
45 scanf("%d",&T);
46 for (int cas=1;cas<=T;cas++){
47 scanf("%s",s);
48 int ans=solve();
49 if (s[0]=='+' && s[1]=='a' && s[2]=='a'){
50 s[0]='a';
51 s[1]='a';
52 s[2]='+';
53 ans=min(ans,solve()+2);
54 }
55 printf("Case %d: %d\n",cas,ans);
56 }
57 return 0;
58 }
59 /*
60 4
61 a
62 a+a
63 +aa
64 aa++++a
65 */
