Answer:
<em>The program written in Python is as follows:</em>
def solution(N):
      concat = ""
      for i in range(1,N+1):
            if not(i%2 == 0 or i%3 ==0 or i%5 == 0):
                  print(str(i))
            else:
                  if i%2 == 0:
                        concat= concat+"Codility"
                  if i%3 == 0:
                        concat= concat+"Testers"
                  if i%5 == 0:
                        concat= concat+"Coders"
                  print(concat)
                  concat = ""
N = int(input("Enter a positive integer: "))
solution(N)
Explanation:
This line declares the function
def solution(N):
This line initializes a variable named concat to an empty string
      concat = ""
This line iterates from 1 to the input integer
      for i in range(1,N+1):
<em>This line checks if the current number of iteration is divisible by 2,3 or 5, if no, the number is printed</em>
            if not(i%2 == 0 or i%3 ==0 or i%5 == 0):
                  print(str(i))
<em>If otherwise</em>
            else:
<em>This lines checks if current number is divisible by 2; if yes the string "Codility" is concatenated to string concat</em>
                  if i%2 == 0:
                        concat= concat+"Codility"
<em>This lines checks if current number is divisible by 3; if yes the string "Testers" is concatenated to string concat</em>
<em>                 </em> if i%3 == 0:
                        concat= concat+"Testers"
<em>This lines checks if current number is divisible by 2; if yes the string "Coders" is concatenated to string concat</em>
                  if i%5 == 0:
                        concat= concat+"Coders"
<em>The concatenated string is printed using this line</em>
                  print(concat)
This variable concat is intialized back to an empty string
                  concat = ""
The main method starts here
N = int(input("Enter a positive integer: "))
This line calls the defined function solution
solution(N)