#include <iostream>
#include <string>
using namespace std;

int main() {
    string a;
    int b, rem = 0;
    cin >> a >> b;
    string res;
    
    for (char c : a) {
        rem = rem * 10 + (c - '0');  // 计算当前待除数值
        res += (rem / b) + '0';      // 记录当前位商
        rem %= b;                    // 更新余数
    }
    
    // 跳过前导零
    size_t i = 0;
    while (i < res.size() && res[i] == '0') i++;
    
    // 输出结果(全零则输出0)
    cout << (i == res.size() ? "0" : res.substr(i)) << endl;
    return 0;
}
/**************************************************************
	Problem: 1604
	User: hongjiaming
	Language: C++
	Result: Accepted
	Time:47 ms
	Memory:2076 kb
****************************************************************/