
[15 12]

[ 0  1]

[14, 4]
15

[20 0]

[ 0 1]


[20 0]

[ 0 1]


[20 0]

[ 0 1]

[19, 0]
[0, 19]~
[0, 19]~
20
20
20
67
[13, 1]
[1, 13]~
[1, 13]~
[1, 13]~
[1, 13]~
23
[9, 1]
[1, 9]~
[1, 9]~
[1, 9]~
[1, 9]~
Total time spent: 4
