HDOJ-1002

 1 import java.math.*;
 2 import java.io.*;
 3 import java.util.*;
 4 public class Main{
 5     public static void main(String[] args){
 6         Scanner sc = new Scanner(System.in);
 7         BigDecimal f1, f2;
 8         int c = Integer.parseInt(sc.next());
 9         int i = 1;
10         while(sc.hasNext()){
11             
12             f1 = new BigDecimal(sc.next());
13             f2 = new BigDecimal(sc.next());
14             System.out.println("Case " + i + ":");
15             System.out.println(f1 + " + " + f2  + " = " + f1.add(f2) );
16             if(i < c)
17                 System.out.println();
18             //System.out.println(f1.subtract(f2));
19             //System.out.println(f1.multiply(f2));
20             //System.out.println(f1.divide(f2));
21             i++;
22             if(i > c)    break;
23         }
24         
25     }
26 }