new_contents: #!/bin/python3
  
  import sys
  
  def solution(n, c, m):
      cnt = n // c
  
      if m > 0:
          w = cnt
  
          while w >= m:
              x    = w // m
              w    = w - m * x + x
              cnt += x
  
      return cnt
  
  t = int(input().strip())
  
  for a0 in range(t):    
      n, c, m = map(int, input().split(' '))
      cnt     = solution(n, c, m)
      
      print(cnt)
  
subject: Create solution.py