Your task is to find a range L to R (inclusive) such that the number of integers in this range that satisfies the following property is equal to K:
For example, 1257 has 1 + 2 + 5 + 7 + 12 + 15 + 17 + 25 + 27 + 57 + 125 + 127 + 257 + 1257 = 1934 as the sum of all subsequences.
Find such a range that is of the minimum length. If more than one such range exists, print the range with the smallest value of L.
Input format
Output format
For each query, print two integers denoting L R in a separate line. If no such range exists, then print -1.
Constraints
1≤Q≤1e51≤K≤1e5
For Query 1 :
L = 1 , R = 1 . 1 satisfy given property
For Query 2 :
L = 1 , R = 9 . 1, 3, 5, 7, 9 satisfy given property.