Columns#2322
A table of size n \times n filled with integers is given. Peter calls a column good if it contains the number . Determine for each column whether it is good.
The first line contains an integer whose absolute value does not exceed 2 \cdot 10^9. The second line contains an integer (1 \leq n \leq 100). Each of the next lines contains integers, each with an absolute value not exceeding 2 \cdot 10^9 — the elements of the table.
For each column, print YES in a separate line if it is good, and NO otherwise.
Example 1
Example 2