1213: 求m到n之间的奇数之和

Memory Limit:128 MB Time Limit:1.000 S
Judge Style:Text Compare Creator:
Submit:59 Solved:17

Description

输入两个整数M,N,求他们之间所有奇数的和(m小于n)

Input

整数M,N

Output

之间所有奇数之和

Sample Input Copy

3 5

Sample Output Copy

8