Write a python code for the instructions in the image. Do not use strings.

Here are the test cases:

assert$($stepsToReach$495(495)==0)$

assert$($stepsToReach$495(594)==1)$ # $954-459=495$

assert$($stepsToReach$495(396)==2)$ # $963-369=594$

# $954-459=495$

assert$($stepsToReach$495(936)==2)$ # Same as $396$

assert$($stepsToReach$495(251)==3)$ # $521-125=396$

# $963-369=594$

# $954-459=495$

assert$($stepsToReach$495(516)==1)$ # $651-156=495$

assert$($stepsToReach$495(891)==4)$

assert$($stepsToReach$495(898)==6)$ # $988-889=099$

# $990-099=891$

# $981-189=792$

# $972-279=693$

# $963-369=594$

# $954-459=495$

assert$($stepsToReach$495(111)==$ None$)$

assert$($stepsToReach$495(555)==$ None$)$

assert$($stepsToReach$495(777)==$ None$)$