#include <iostream>
using namespace std;
int dividingNums(int, int);
int main()
{
	int FirstNum = 0;
	int SecondNum = 0;
	cout << "input number: ";
	cin >> FirstNum;
	cout << "input number: ";
	cin >> SecondNum;
	cout << dividingNums(FirstNum, SecondNum);
	return 0;
}
int dividingNums(int FirstNum, int SecondNum)
{
	int result = FirstNum % SecondNum;
	return result;
}