Need python$3$ solution for the same asap

The Car company has manufactured N number of cars, out of this they need K number of cars with the same battery level to check the durability of car ba batteries. The total capacity of the car battery is $10$ po ints each car takes $1$ hour to charge $1$ point. Create a function to find the minimum number of ti me to charge K cars to get the same level of battery

the function getCars$()$ should take two lines of inputs, the first line of input will be the number of cars there $($N$)$ and number of cars needed $($K$),$ then the second line of input will be the battery level for the N number of cars. In

the output print the minimum number of hours needed to get the K number of cars with the ame level of battery.

Sample Case $0$

Sample Input

N $=73$

K $=53710454$

and the Sample Output is $1$

Explanation

Here already two cars at the battery level $4$ and at nearest have a at battery level $3,$ it will takes $1$ hour to reach the battery level $4.$ So the total time needed to get the $3$ cars at the same battery level is $1$ hour.