B'You are given an array of n non-negative integers a_1, a_2, ldots, a_n . You can make the following operation: choose an integer x geq 2 and replace each number of the array by the remainder when dividing that number by x , that is, for all 1 <= q i <= q n set a_i to a_i bmod x . Determine if it is possible to make all the elements of the array equal by applying the operation zero or more times. The input consists of multiple test cases. The first line contains a single integer t ( 1 <= q t <= q 10^4 ) -- the number of test cases. Description of the test cases follows. The first line of each test case contains an integer n ( 1 <= q n <= q 10^5 ) -- the length of the array. The second line of each test case contains n integers a_1, a_2, ldots, a_n ( 0 <= q a_i <= q 10^9 ) where a_i is the i -th element of the array. The sum of n for all test cases is at most 2 cdot 10^5 . For each test case, print a line with YES if you can make all elements of the list equal by applying the operation. Otherwise, print NO. You may print each letter in any case (for example, "YES", "Yes", "yes", "yEs" will all be recognized as a positive answer). In the first test case, one can apply the operation with x = 3 to obtain the array [2, 2, 0, 2] , and then apply the operation with x = 2 to obtain [0, 0, 0, 0] . In the second test case, all numbers are already equal. In the fourth test case, applying the operation with x = 4 results in the array [1, 1, 1, 1] . '...