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#include <iostream>

using namespace std;

string multiply_two_numbers_as_string(string a, string b) {
    int len_a = a.size();
    int len_b = b.size();
    int mult[len_a + len_b + 1];
    for(int i = 0; i < len_a + len_b + 1; i++) {
        mult[i] = 0;
    }
    int till_a = 0, till_b = 0;
    if(a[0] == '-') {
        till_a = 1;
    }
    if(b[0] == '-') {
        till_b = 1;
    }
    for(int i = len_a - 1; i >= till_a; i--) {
        for(int j = len_b - 1; j >= till_b; j--) {
            mult[i + j + 1] += (a[i] - '0') * (b[j] - '0');
        }
    }
    for(int i = len_a + len_b - 1; i >= 0; i--) {
        if(mult[i] > 9) {
            mult[i - 1] += (mult[i] / 10);
            mult[i] %= 10;
        }
    }
    int i = 0;
    while(mult[i] == 0) {
        i++;
    }
    string product = "";
    if(till_a != till_b) {
        product += "-";
    }
    for(int j = i; j < len_a + len_b; j++) {
        product += (mult[j] + '0');
    }
    return product;
}
bool is_A_smaller_than_B(string A, string B) {
    if(A.size() < B.size()) {
        return true;
    }
    if(A.size() > B.size()) {
        return false;
    }
    for(int i = 0; i < (int) A.size(); i++) {
        if(A[i] < B[i]) {
            return true;
        }
        if(A[i] > B[i]) {
            return false;
        }
    }
    return true;
}
string subtract_big_integer(string A, string B) {
    if(is_A_smaller_than_B(A, B)) {
        swap(A, B);
    }
    int sz_a = (int)A.size() - 1;
    int sz_b = (int)B.size() - 1;
    int carry = 0;
    string diff = "";
    while(sz_a >= 0 and sz_b >= 0) {
        int digit_a = (A[sz_a] - '0');
        int digit_b = (B[sz_b] - '0');
        int razlika = digit_a - digit_b - carry;
        if(razlika < 0) {
            razlika += 10;
            carry = 1;
        }
        else {
            carry = 0;
        }
        diff += (razlika + '0');
        sz_a--;
        sz_b--;
    }
    while(sz_a >= 0) {
        int digit_a = (A[sz_a] - '0');
        int razlika = digit_a - carry;
        if(razlika < 0) {
            carry = 1;
            razlika += 10;
        }
        else {
            carry = 0;
        }
        diff += (razlika + '0');
    }
    reverse(diff.begin(), diff.end());
    int i = 0;
    string result = "";
    while(diff[i] == '0') {
        i++;
    }
    for(int j = i; j < diff.size(); j++) {
        result += diff[j];
    }
    return result;
}
string add_big_integer(string A, string B) { // funkcija koja ke ni sobere A + B
    if(A.size() < B.size()) {
        swap(A, B);
    }
    int a_i = (int) A.size() - 1;
    int b_i = (int) B.size() - 1;
    int carry = 0;
    string sum = "";
    while(a_i >= 0 and b_i >= 0) {
        int digit_a = (A[a_i] - '0');
        int digit_b = (B[b_i] - '0');
        int zbir = digit_a + digit_b + carry;
        
        if(zbir <= 9) {
            sum += (zbir + '0');
            carry = 0;
        }
        else {
            carry = 1;
            zbir -= 10;
            sum += (zbir + '0');
        }
        a_i--;
        b_i--;
    }
    while(a_i >= 0) {
        int digit_a = (A[a_i] - '0');
        int zbir = digit_a + carry;
        if(zbir <= 9) {
            sum += (zbir + '0');
            carry = 0;
        }
        else {
            carry = 1;
            zbir -= 10;
            sum += (zbir + '0');
        }
        a_i--;
    }
    if(carry == 1) {
        sum += "1";
    }
    reverse(sum.begin(), sum.end());
    
    return sum;
}
string divide_two_big_numbers_as_string(string a, string b) {
    if(is_A_smaller_than_B(a, b)) {
        swap(a, b);
    }
    
    string S = "";
    for(int i = 0; i < b.size(); i++) {
        S += a[i];
    }
    if(is_A_smaller_than_B(S, b)) {
        S += a[b.size()];
    }
    string diff  = S;
    string pati = "1";
    while(!is_A_smaller_than_B(diff, b)) {
        if(!is_A_smaller_than_B(subtract_big_integer(diff, b), b)) {
            diff = subtract_big_integer(diff, b);
            pati = add_big_integer(pati, "1");
        }
        else {
            break;
        }
    }
    
    string remainder = "";
    string quotient = "";
    quotient += pati;
    for(int i = (int) S.size(); i < (int) a.size(); i++) {
        remainder = subtract_big_integer(S, multiply_two_numbers_as_string(pati, b));
        remainder += a[i];
        diff = remainder;
        pati = "1";
        while(!is_A_smaller_than_B(diff, b)) {
            if(!is_A_smaller_than_B(subtract_big_integer(diff, b), b)) {
                diff = subtract_big_integer(diff, b);
                pati = add_big_integer(pati, "1");
            }
            else {
                break;
            }
        }
        quotient += pati;
        S = remainder;
    }
    
    return quotient;
}

int main() {
    string a, b;
    a = "32167";
    b = "123";
    cout << divide_two_big_numbers_as_string(a, b) << endl;
    return 0;
}