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Time Limit: 3000/1000 MS (Java/Others) Memory Limit: 32768/32768 K (Java/Others)
Total Submission(s): 15918 Accepted Submission(s): 6599

Problem Description

有一天, KIKI 收到一张奇怪的信, 信上要KIKI 计算出给定数各个位上数字为偶数的和.
eg. 5548
结果为12 , 等于 4 + 8

KIKI 很苦恼. 想请你帮忙解决这个问题.

Input

输入数据有多组,每组占一行,只有一个数字,保证数字在INT范围内.

Output

对于每组输入数据,输出一行,每两组数据之间有一个空行.

Sample Input

415326
3262

Sample Output

12

10

Author

kiki

Source

HDU 2007-10 Programming Contest_WarmUp

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