Saurabh loves numbers a lot. He has a board which has all the infinitely many natural numbers written on it. (The board is big enough to contain all the infinitely many natural numbers that can possibly exist!!)
Deepjoy (one of his mischievous friends) tries to manipulate the numbers written on the board using a magic function and a set .
The details of the magic function and the set are given below:
Here , where is repeated times.
Now Deepjoy gives the magic function and a set containing elements to Saurabh and asks him to rub all the numbers which satisfy the magic function (i.e. , where is any natural number). Now he asks Saurabh to count the remaining numbers left on the board!
Saurabh is confused whether he would be able to count the remaining numbers left on the board or not. (remember infinitely many natural numbers were written on the board)!
Help him to count the numbers that are left on the board (if you can)!
Input:
Output:
Print "Yes, I can" if the no. of remaining elements are countable (finite no. of elements are left on the board) otherwise print "No, I can't" in a single line. (ignore the quotes while printing the answer)
Constraints:
Elements in the set
test case:
belongs to the set . So, is true for all natural numbers .
Now , this shows that magic function is true for . Similarly we can show that is true for all natural numbers .
Therefore the answer is "Yes, I can".