BFS (Binary Fibonacci String)
We are familiar with the Fibonacci sequence (1, 1, 2, 3, 5, 8, ...). What if we define a similar sequence for strings? Sounds interesting? Let's see.
We define the follwing sequence:
BFS(0) = 0 BFS(1) = 1 (here "0" and "1" are strings, not simply the numerical digit, 0 or 1)
for all (n > 1) BFS(n) = BFS(n - 2) + BFS(n - 1) (here, + denotes the string concatenation operation). (i.e. the n-th string in this sequence is a concatenation of a previous two strings).
So, the first few strings of this sequence are: 0, 1, 01, 101, 01101, and so on.
Your task is to find the N-th string of the sequence and print all of its characters from the i-th to j-th position, inclusive. (All of N, i, j are 0-based indices)
Input
The first line of the input file contains an integer T (T ≤ 100) which denotes the total number of test cases. The description of each test case is given below:
Three integers N, i, j (0 ≤ N, i, j ≤ 2^31 - 1) and (i ≤ j and j-i ≤ 10000). You can assume that, both i and j will be valid indices (i.e. 0 ≤ i, j < length of BFS(N)).
Output
For each test case, print the substring from the i-th to the j-th position of BFS(N) in a single line.