1 #include<stdio.h>
2 #include<string.h>
3 #include<stdlib.h>
4 char str[1005];
5 int start;
6 char s[50],ss[50];int i,j;
7 double Term();double Expression();double Factor();
8 double Term()
9 {
10 double f=Factor(),t;
11 --start;
12 if(str[start]=='*')
13 {
14 t=Term();
15 return t*f;
16 }
17 else if(str[start]=='/')
18 {
19 t=Term();
20 return t/f;
21 }
22 else {++start;return f;}
23 }
24 double Expression()
25 {
26 double t=Term(),e;
27 --start;
28 if(str[start]=='+')
29 {
30 e=Expression();
31 return e+t;
32 }
33 else if(str[start]=='-')
34 {
35 e=Expression();
36 return e-t;
37 }
38 else {++start;return t;}
39 }
40 double Factor()
41 {
42 --start;
43 double ret;
44 if(str[start]==')')
45 {
46 ret=Expression();
47 --start;
48 return ret;
49 }
50 else
51 {
52 i=0;
53 memset(ss,0,sizeof(ss));
54 while((str[start]>='0'&&str[start]<='9')||str[start]=='.')
55 s[i++]=str[start--];
56 ++start;
57 for(j=0;j<i;j++)
58 {
59 ss[j]=s[i-1-j];
60 }
61 return atof(ss);
62 }
63 }
64 int main()
65 {
66 //freopen("1.txt","r",stdin);
67 int n;
68 scanf("%d",&n);
69 while(n--)
70 {
71 scanf("%s",str);
72 start=strlen(str)-1;
73 printf("%.2lf\n",Expression());
74 }
75 }
