title: Why numba is slower than pure python in my code?
body: <p>I'm kinda new to python and I was playing around with numba and wrote a code that runs slower than pure python in numba. in small numbers, pure python is faster around x4 times than numba and in large numbers, they run pretty much the same. what is making my code run slow in numba?</p>
  <pre><code>from numba import njit
  @njit
  def forr (q):
      p=0
      k=q
      n=0
      while k!=0:
              n += 1
              k=k//10
      
      h=(abs(q-n*9)+q-n*9)//2 
      for j in range(q,h,-1):
          
          s=0
          k=j
          while k!=0:
              s += k%10
              k=k//10
          
          if s+j==q:
              p=1
              print('Yes')
              break
      if p==0:
          print('No')
  
  </code></pre>