PROGRAMMING:Socket problem
In order to hold a program design competition in the gymnasium, it is necessary to connect the server, router, printer, computer and other electronic equipment (assuming that all the plugs of electrical appliances are three ends). There is only one three hole socket on the wall of the gymnasium. Now the organizing committee needs to buy a batch of plug rows (three plugs and three holes for all jacks) so that all electrical appliances can be powered on. Want you to help figure out at least how many rows you need to buy?
###Input format:
Enter two integers n and K to indicate n consumers and K sockets for each socket row (1 < = n < = 100, 2 = < K < = 100)
###Output format:
A number indicating the minimum number of rows required.
###Input example:
Here is a set of inputs. For example:
```in
10 4
```
###Output example:
The corresponding output is given here. For example:
```out
three
```
answer：If there is no answer, please comment
###Input format:
Enter two integers n and K to indicate n consumers and K sockets for each socket row (1 < = n < = 100, 2 = < K < = 100)
###Output format:
A number indicating the minimum number of rows required.
###Input example:
Here is a set of inputs. For example:
```in
10 4
```
###Output example:
The corresponding output is given here. For example:
```out
three
```
answer：If there is no answer, please comment