case 1 failed: expected 1 1 2 2 2 2 2 3 3 3 3 4 4 4 5
 got 1 1 2 2 2 2 2 2 2 2 2 2 2 2 2
input:
15
1 2 2 1 2 2 4 4 7 2 9 12 5 6 13
exit status 1