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

string divide(string num, int divisor) {
    string result = "";
    int remainder = 0;
    
    // 逐位处理
    for (int i = 0; i < num.length(); i++) {
        int digit = num[i] - '0';
        int current = remainder * 10 + digit;
        int quotient = current / divisor;
        remainder = current % divisor;
        
        // 只有在结果不为前导零时才添加
        if (!(result.empty() && quotient == 0)) {
            result += to_string(quotient);
        }
    }
    
    // 如果结果为空，说明商为0
    if (result.empty()) {
        return "0";
    }
    
    return result;
}

int main() {
    string a;
    int b;
    
    cin >> a >> b;
    
    string quotient = divide(a, b);
    cout << quotient << endl;
    
    return 0;
}