VE280 SU2021 (Paul)
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Stderr 


        

      

    

          

        

          

            

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Your answer may be identical to the JOJ answer in the first several lines.

                          
However, you will still get 
                Wrong Answer
                because the complete output may be longer and there might be errors in the future lines.

                        
Please double check your code to solve this problem and try again.

          

        

      

        

      

        

          

            
            Your Answer
          

        

        

          
4
9
nullptr
20
10
21
22
10
21
43
44
22
45
46
4
9
nullptr
20
10
21
22
1
3
7
8
4
9
10
1
3
7
8
4
9
10
nullptr
4
9
nullptr
20
10
21
22
10
21
43
44
22
45
46
4
9
nullptr
20
10
21
22
1
3
7
8
4
9
10
1
3
7
8
4
9
10
nullptr
4
9
nullptr
20
10
21
22
10
21
43
44
22
45
46
4
9
nullptr
20
10
21
22
1
3
7
8
4
9
10
1
3
7
8
4
9
10
nullptr
4
9
nullptr
20
10
21
22
10
21
43
44
22
45
46
3
7
15
16
8
17
18
1
3
7
8
4
9
10
1
3
7
8
4
9
10
nullptr
4
9
nullptr
20
10
21
22
10
21
43
44
22
45
46
4
9
nullptr
20
10
21
22
1
3
7
8
4
9
10
1
3
7
8
4
9
10
nullptr
4
9
nullptr
20
10
21
22
10
21
43
44
22
45
46
3
7
15
16
8
17
18
1
3
7
8
4
9
10
1
3
7
8
4
9
10
nullptr
4
9
nullptr
20
10
21
22
10
21
43
44
22
45
46
4
9
nullptr
20
10
21
22
1
3
7
8
4
9
10
1
3
7
8
4
9
10
nullptr
4
9
nullptr
20
10
21
22
10
21
43
44
22
45
46
4
9
nullptr
20
10
21
22
1
3
7
8
4
9
10
1
3
7
8
4
9
10
nullptr
4
9
nullptr
20
10
21
22
10
21
43
44
22
45
46
4
9
nullptr
20
10
21
22
1
3
7
8
4
9
10
1
3
7
8
4
9
10
nullptr
4
9
nullptr
20
10
21
22
10
21
43
44
22
45
46
4
9
nullptr
20
10
21
22
1
3


        

      

    

    

      

        

          

            
            JOJ Answer
          

        

        

          
2
5
11
12
6
13
14
6
13
27
28
14
29
30
2
5
11
12
6
13
14
0
1
3
4
2
5
6
0
1
3
4
2
5
6
nullptr
2
5
11
12
6
13
14
6
13
27
28
14
29
30
2
5
11
12
6
13
14
0
1
3
4
2
5
6
0
1
3
4
2
5
6
nullptr
2
5
11
12
6
13
14
6
13
27
28
14
29
30
2
5
11
12
6
13
14
0
1
3
4
2
5
6
0
1
3
4
2
5
6
nullptr
2
5
11
12
6
13
14
6
13
27
28
14
29
30
0
1
3
4
2
5
6
0
1
3
4
2
5
6
0
1
3
4
2
5
6
nullptr
2
5
11
12
6
13
14
6
13
27
28
14
29
30
2
5
11
12
6
13
14
0
1
3
4
2
5
6
0
1
3
4
2
5
6
nullptr
2
5
11
12
6
13
14
6
13
27
28
14
29
30
0
1
3
4
2
5
6
0
1
3
4
2
5
6
0
1
3
4
2
5
6
nullptr
2
5
11
12
6
13
14
6
13
27
28
14
29
30
2
5
11
12
6
13
14
0
1
3
4
2
5
6
0
1
3
4
2
5
6
nullptr
2
5
11
12
6
13
14
6
13
27
28
14
29
30
2
5
11
12
6
13
14
0
1
3
4
2
5
6
0
1
3
4
2
5
6
nullptr
2
5
11
12
6
13
14
6
13
27
28
14
29
30
2
5
11
12
6
13
14
0
1
3
4
2
5
6
0
1
3
4
2
5
6
nullptr
2
5
11
12
6
13
14
6
13
27
28
14
29
30
2
5
11
12
6
13
14
0
1
3
4
2
5
6
0
1
3
4
2
5
6
nullptr


        

      

    

  

  
  
  

  

  

      

      

        
    
          
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