5189: B3936 [语言月赛 202402] 小朋友的身高(入门)
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 2
1 2 3
2 2 2
4 3 1
1 1 3
2 2 3
Sample Output Copy
-2
1
HINT
