Associated Course(s):
Placement 100
C++ STL

Given two strings of lowercase alphabets and a value **K**, your task is to complete the given function which tells if two strings are** K-anagrams** of each other or not.

Two strings are called K-anagrams if** both of the below **conditions are true.

1. Both have **same **number of characters.

2. Two strings can become anagram by **changing **at most **K** characters in a string.

**Input Format:**

The first line of input contains an integer **T **denoting the no of test cases. Then** T** test cases follow. The first line of input contains two Strings **Str1 **and **Str2**. And next line contains an integer **K**, which denotes number of characters can be replaced.

**Output Format:**

For each testcase, in a new line, print the respective output.

**Your Task:**

Since this is a function problem, you don't need to take any input. Just complete the given function **areKAnagrams **that **returns true** if the strings can be turned into K-anagrams, else return **false**.

**Constraints:**

1 <= T <= 100

1 <= K <= |length of String|

**Example:
Input:**

1

fodr gork

2

1

**Explanation:
Testcase1: **change fd to gk

Author: saksham seth

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