CF400A Inna and Choose Options

There always is something to choose from! And now, instead of "Noughts and Crosses", Inna choose a very unusual upgrade of this game. The rules of the game are given below: There is one person playing the game. Before the beginning of the game he puts 12 cards in a row on the table. Each card contains a character: "X" or "O". Then the player chooses two positive integers $ a $ and $ b $ $ (a·b=12) $ , after that he makes a table of size $ a×b $ from the cards he put on the table as follows: the first $ b $ cards form the first row of the table, the second $ b $ cards form the second row of the table and so on, the last $ b $ cards form the last (number $ a $ ) row of the table. The player wins if some column of the table contain characters "X" on all cards. Otherwise, the player loses. Inna has already put 12 cards on the table in a row. But unfortunately, she doesn't know what numbers $ a $ and $ b $ to choose. Help her win the game: print to her all the possible ways of numbers $ a,b $ that she can choose and win.

The first line of the input contains integer $ t $ $ (1

For each test, print the answer to the test on a single line. The first number in the line must represent the number of distinct ways to choose the pair $ a,b $ . Next, print on this line the pairs in the format $ a $ x $ b $ . Print the pairs in the order of increasing first parameter ( $ a $ ). Separate the pairs in the line by whitespaces.