Problem F: 演唱会

Problem F: 演唱会

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Time Limit : 1.000 sec  Memory Limit : 128 MiB

SubmitProblemListSolved: 3Submit Num: 6StatisticsShowOff!

Description

Input

Output

Sample Input Copy 

4 2 3 2
2 4 3 1
1 2 3 4
2 3 4 1

Sample Output Copy 

3 4

HINT

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