Ren Ashbell is often called the Strongest Blade Dancer. You have doubts that this is not actually true. Given the power level of people, determine whether Ren Ashbell is the strongest (her power level is strictly greater than the power levels of all other people).
The first line of input will have .
The next lines of input will each have the power level of a person, a positive integer no more than . The first of these lines will be Ren Ashbell's power level.
The first and only line of output should be
YES if Ren Ashbell is the strongest or
NO if Ren Ashbell is not the strongest.