A Simple Task
Description
This task is very simple. Given a string S of length n and q queries each query is on the format i j k which means sort the substring consisting of the characters from i to j in non-decreasing order if k = 1 or in non-increasing order if k = 0.
Output the final string after applying the queries.
The first line will contain two integers n, q (1 ≤ n ≤ 105, 0 ≤ q ≤ 50 000), the length of the string and the number of queries respectively.
Next line contains a string S itself. It contains only lowercase English letters.
Next q lines will contain three integers each i, j, k (1 ≤ i ≤ j ≤ n, 
).
Output one line, the string S after applying the queries.
Input
The first line will contain two integers n, q (1 ≤ n ≤ 105, 0 ≤ q ≤ 50 000), the length of the string and the number of queries respectively.
Next line contains a string S itself. It contains only lowercase English letters.
Next q lines will contain three integers each i, j, k (1 ≤ i ≤ j ≤ n, ).
Output
Output one line, the string S after applying the queries.
Samples
10 5
abacdabcda
7 10 0
5 8 1
1 4 0
3 6 0
7 10 1
cbcaaaabdd
10 1
agjucbvdfk
1 10 1
abcdfgjkuv
Note
First sample test explanation:
