10014 - Student(s) of Last Bench

Student(s) of Last Bench

Time Limit: 1 sec


The Problem

In a classroom, there is a teacher and several students. If you know the total number of the people in a classroom and the maximum numbers of student sit in a bench, can you calculate the number of student(s) sit in last bench? Students basically try to sit on the front benches if it’s possible. 


The Input

Input file consists of several test cases. Each test case contains a line and each line contains two integers denoted the total number of people in the classroom T (0<=T<=100) and maximum number of students sit in a bench M (1<=M<=10). Input is terminated by EOF.


The Output

For each test case, you have to print out the number of student(s) in the last bench in a separate line.


Sample Input

44 5


Sample Output





[School Level]

Inter School & College Programming Contest (ISCPC) 2015 

Problem Setter: Md. Helal Uddin & Hasnayn Ahmed Shakil