2392 剩余糖果数

#include<bits/stdc++.h>
#define f(i,s,e) for(int i = s; i <= e; i++)
#define ll long long
using namespace std;
const int N = 1e3+10,inf = 0x3f3f3f3f;

int main()
{
    int a,b;
    cin >> a >> b;
    cout << a % b; //求a个糖果均分给b个人剩余的糖果 
    return 0;
}