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Contest: Task: Related: TaskB

Score : $100$ points

Problem Statement

Serval is fighting with a monster.

The health of the monster is $H$.

In one attack, Serval can decrease the monster's health by $A$. There is no other way to decrease the monster's health.

Serval wins when the monster's health becomes $0$ or below.

Find the number of attacks Serval needs to make before winning.

Constraints

  • $1 \leq H \leq 10^4$
  • $1 \leq A \leq 10^4$
  • All values in input are integers.

Input

Input is given from Standard Input in the following format:

$H$ $A$

Output

Print the number of attacks Serval needs to make before winning.

Sample Input 1

10 4

Sample Output 1

3
  • After one attack, the monster's health will be $6$.
  • After two attacks, the monster's health will be $2$.
  • After three attacks, the monster's health will be $-2$.

Thus, Serval needs to make three attacks to win.

Sample Input 2

1 10000

Sample Output 2

1

Sample Input 3

10000 1

Sample Output 3

10000