What number should replace the question mark?24 14 38 63 87 26 19 16 51 32 23 24 1463 87 26 1932 2338 16 51
问题描述：
What number should replace the question mark?24 14 38 63 87 26 19 16 51 32 23
24 14
63 87 26 19
32 23
38
16 51
答