Median

Write a program that reads three integers per line from the standard input until three zeros are read. Except for the last scanned line, the program should write the median of the three scanned numbers (the middle of the sorted elements) for each line.

Sample Input

1. 3 2 5
2. 3 3 4
3. -1 0 8
4. 0 5 0
5. 0 0 0

Output for Sample Input

1. 3
2. 3
3. 0
4. 0