UVA 10783 Java

import java.util.*;
public class main{
    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        int times = sc.nextInt();
        for(int i = 0; i < times; i++)
        {
        	int a = sc.nextInt();
        	int b = sc.nextInt();
        	int sum = 0;
        	for(int j = a; j <= b; j++)
        		if(j % 2 != 0)
        			sum += j;
        	System.out.println(String.format("Case %d: %d", i+1, sum));
        }
    }
};