Write a function called printRange() that accepts two integers as arguments and prints the sequence of numbers between the two arguments, surrounded by brackets ([]) and separated by a comma and a space. Print an increasing sequence if the first argument is smaller than the second; otherwise, print a decreasing sequence. If the two numbers are the same, that number should be printed by itself. Here are some sample calls to printRange: printRange (2,7) printRange (19, 11)-> printRange (5, 5) [2, 3, 4, 5, 6, 7] [19, 18, 17, 16, 15, 14, 13, 12, 11] [5] Complete the following files: pr.cpp #include 2 using namespace std; 3 #include "pr.h" 4 void isPr(int ni, int n2) 5 { 6 while (a - b) 7 { 8 if (a > b) 9 { 10 a++; 11 } 12 else 13 { 14 a--; 15 } 16 } 17 } pr.h /** @file pr. @author Oversion CS 150 Spring 2021 6 7 8 9 10 #ifndef PR H #define PR_H void isPr(int nl, int n2) #endif Testers Running Tester.cpp Error: /tmp/codecheck. Pe7P4Q8QiJ/pr. cpp: 4:1: error: expected initializer before 'void' void ispr(int n, int 12) Write a function named addCommas that accepts a string representing a number and returns a new string with a comma at every third position, starting from the right. For example: addCommas ("12345678") -> "12, 345, 678" Complete the following files: strings.cpp 1 // Implement your function here strings.h 1 // Declare your function here Use the following file: client.cpp #include using namespace std; #include "strings.h" int main() { cout > n cout