testcase

[3, 4, 6, 5]
[9, 1, 2, 5, 8, 3]
5
[6, 7]
[6, 0, 4]
5
[3, 9]
[8, 9]
3
[8,9,7,3,5,9,1,0,8,5,3,0,9,2,7,4,8,9,8,1,0,2,0,2,7,2,3,5,4,7,4,1,4,0,1,4,2,1,3,1,5,3,9,3,9,0,1,7,0,6,1,8,5,6,6,5,0,4,7,2,9,2,2,7,6,2,9,2,3,5,7,4,7,0,1,8,3,6,6,3,0,8,5,3,0,3,7,3,0,9,8,5,1,9,5,0,7,9,6,8,5,1,9,6,5,8,2,3,7,1,0,1,4,3,4,4,2,4,0,8,4,6,5,5,7,6,9,0,8,4,6,1,6,7,2,0,1,1,8,2,6,4,0,5,5,2,6,1,6,4,7,1,7,2,2,9,8,9,1,0,5,5,9,7,7,8,8,3,3,8,9,3,7,5,3,6,1,0,1,0,9,3,7,8,4,0,3,5,8,1,0,5,7,2,8,4,9,5,6,8,1,1,8,7,3,2,3,4,8,7,9,9,7,8,5,2,2,7,1,9,1,5,5,1,3,5,9,0,5,2,9,4,2,8,7,3,9,4,7,4,8,7,5,0,9,9,7,9,3,8,0,9,5,3,0,0,3,0,4,9,0,9,1,6,0,2,0,5,2,2,6,0,0,9,6,3,4,1,2,0,8,3,6,6,9,0,2,1,6,9,2,4,9,0,8,3,9,0,5,4,5,4,6,1,2,5,2,2,1,7,3,8,1,1,6,8,8,1,8,5,6,1,3,0,1,3,5,6,5,0,6,4,2,8,6,0,3,7,9,5,5,9,8,0,4,8,6,0,8,6,6,1,6,2,7,1,0,2,2,4,0,0,0,4,6,5,5,4,0,1,5,8,3,2,0,9,7,6,2,6,9,9,9,7,1,4,6,2,8,2,5,3,4,5,2,4,4,4,7,2,2,5,3,2,8,2,2,4,9,8,0,9,8,7,6,2,6,7,5,4,7,5,1,0,5,7,8,7,7,8,9,7,0,3,7,7,4,7,2,0,4,1,1,9,1,7,5,0,5,6,6,1,0,6,9,4,2,8,0,5,1,9,8,4,0,3,1,2,4,2,1,8,9,5,9,6,5,3,1,8,9,0,9,8,3,0,9,4,1,1,6,0,5,9,0,8,3,7,8,5]
[7,8,4,1,9,4,2,6,5,2,1,2,8,9,3,9,9,5,4,4,2,9,2,0,5,9,4,2,1,7,2,5,1,2,0,0,5,3,1,1,7,2,3,3,2,8,2,0,1,4,5,1,0,0,7,7,9,6,3,8,0,1,5,8,3,2,3,6,4,2,6,3,6,7,6,6,9,5,4,3,2,7,6,3,1,8,7,5,7,8,1,6,0,7,3,0,4,4,4,9,6,3,1,0,3,7,3,6,1,0,0,2,5,7,2,9,6,6,2,6,8,1,9,7,8,8,9,5,1,1,4,2,0,1,3,6,7,8,7,0,5,6,0,1,7,9,6,4,8,6,7,0,2,3,2,7,6,0,5,0,9,0,3,3,8,5,0,9,3,8,0,1,3,1,8,1,8,1,1,7,5,7,4,1,0,0,0,8,9,5,7,8,9,2,8,3,0,3,4,9,8,1,7,2,3,8,3,5,3,1,4,7,7,5,4,9,2,6,2,6,4,0,0,2,8,3,3,0,9,1,6,8,3,1,7,0,7,1,5,8,3,2,5,1,1,0,3,1,4,6,3,6,2,8,6,7,2,9,5,9,1,6,0,5,4,8,6,6,9,4,0,5,8,7,0,8,9,7,3,9,0,1,0,6,2,7,3,3,2,3,3,6,3,0,8,0,0,5,2,1,0,7,5,0,3,2,6,0,5,4,9,6,7,1,0,4,0,9,6,8,3,1,2,5,0,1,0,6,8,6,6,8,8,2,4,5,0,0,8,0,5,6,2,2,5,6,3,7,7,8,4,8,4,8,9,1,6,8,9,9,0,4,0,5,5,4,9,6,7,7,9,0,5,0,9,2,5,2,9,8,9,7,6,8,6,9,2,9,1,6,0,2,7,4,4,5,3,4,5,5,5,0,8,1,3,8,3,0,8,5,7,6,8,7,8,9,7,0,8,4,0,7,0,9,5,8,2,0,8,7,0,3,1,8,1,7,1,6,9,7,9,7,2,6,3,0,5,3,6,0,5,9,3,9,1,1,0,0,8,1,4,3,0,4,3,7,7,7,4,6,4,0,0,5,7,3,2,8,5,1,4,5,8,5,6,7,5,7,3,3,9,6,8,1,5,1,1,1,0,3]
500