4544: P5542 [USACO19FEB] Painting The Barn S

Memory Limit：128 MB Time Limit：1.000 S
Judge Style：Text Compare Creator：
Submit：0 Solved：0

Description

Input

Output

Sample Input Copy 

3 2
1 1 5 5
4 4 7 6
3 3 8 7

Sample Output Copy 

8

HINT

Source/Category

SubmitSubmit RecordStatisticsShowOff!