5124: P6676 【征集 SPJ】[COCI2019-2020#2] Slagalica(普及)
Memory Limit:128 MB
Time Limit:1.000 S
Judge Style:Text Compare
Creator:
Submit:0
Solved:0
Description

Input

Output

Sample Input Copy
5
1 5
2 7
2 3
8 4
6 1
Sample Output Copy
1 3 7 5 4
HINT
