bignum

//#include<bits/stdc++.h>
#include<iostream>
#include<fstream>
#include<string>
#include<sstream>
#include<algorithm>
#include<cmath>

#define long long
#define nln '\n'

using namespace std;

// Global variables: f1, f2, a, b

fstream f1, f2;


inline void openf()
{
    f1.open("bignum.inp", ios:: in);
    f2.open("bignum.out", ios:: out);
}

inline void closef()
{
    f1.close();
    f2.close();
}

string a, b;

void data()
{
    //f1.tie(0)->sync_with_stdio(0);
    //f2.tie(0)->sync_with_stdio(0);
    cin.tie(0)->sync_with_stdio(0);
    cin >> a;
    cin >> b;
}

void fill(string &a, string &b)
{
    reverse(a.begin(), a.end());
    reverse(b.begin(), b.end());
    if (a.size() > b.size())
    {
        long leb = b.size();
        for (long i = 0; i != a.size()-leb; ++i)
            b += '0';
    }
    else
    {
        long lea = a.size();
        for (long i = 0; i != b.size()-lea; ++i)
            a += '0';
    }
}

string cha2str(char cha)
{
    string str = "";
    str += cha;
    return str;
}

char str2cha(string str)
{
    char x = str[0];
    return x;
}

string num2str(long num)
{
    string str = "0";
    while (num > 0)
    {
        str += num%10 + '0';
        num = num/10;
    }
    reverse(str.begin(), str.end());
    return str;
}

long str2num(string str)
{
    long num = 0;
    for (long i = 0; i != str.size(); ++i)
    {
        num += (str[i]-'0')*pow(10, str.size()-i-1);
    }
    return num;
}

string sum(string a, string b)
{
    if (a.size() == b.size())
    {
        reverse(a.begin(), a.end());
        reverse(b.begin(), b.end());
    }
    else
        fill(a, b);

    string res = "";
    long rem = 0;
    for (long i = 0; i != a.size(); ++i)
    {
        long tol = str2num(cha2str(a[i])) + str2num(cha2str(b[i])) + rem;
        res += str2cha(num2str(tol%10));
        rem = tol/10;
    }
    if (rem != 0)
        res += str2cha(num2str(rem));

    reverse(res.begin(), res.end());
    return res;
}

void swap(string &a, string &b)
{
    string itm = a;
    a = b;
    b = itm;
}

string sub(string a, string b)
{
    bool neg = 0;
    if (a.size() == b.size())
    {
        reverse(a.begin(), a.end());
        reverse(b.begin(), b.end());
    }
    else
        fill(a, b);

    string tea = a, teb = b;
    reverse(tea.begin(), tea.end());
    reverse(teb.begin(), teb.end());

    if (tea < teb)
    {
        neg = 1;
        swap(a, b);
    }

    long rem = 0;
    string res = "";
    for (long i = 0; i != a.size(); ++i)
    {
        long x = str2num(cha2str(a[i]));
        long y = str2num(cha2str(b[i]));
        long tol = x - y - rem;
        if (tol < 0)
        {
            res += str2cha(num2str((tol+10) % 10));
            rem = 1;
        }
        else
        {
            res += str2cha(num2str(tol % 10));
            rem = 0;
        }
    }

    while (res[res.size()-1] == '0' && res.size() != 1)
        res.erase(res.size()-1, 1);

    if (neg)
        res += '-';

    reverse(res.begin(), res.end());

    return res;
}

string mul1(string a, string b)
{
    long y = str2num(b);
    string res = "";
    long rem = 0;
    for (long i = a.size()-1; i+1 != 0; --i)
    {
        long x = str2num(cha2str(a[i]));
        long tol = x*y+rem;
        res += str2cha(num2str(tol % 10));
        rem = tol / 10;
    }
    if (rem != 0)
        res += str2cha(num2str(rem));
    reverse(res.begin(), res.end());
    return res;
}

string mul(string a, string b)
{
    string res = "";

    for (long i = b.size()-1; i+1 != 0; --i)
    {
        string tem = mul1(a, cha2str(b[i]));
        for (long j = 0; j != b.size()-i-1; ++j)
            tem += '0';
        res = sum(res, tem);
    }
    return res;
}

void process()
{
}

void printans(string ans)
{
    for (long i = 0; i != ans.size(); ++i)
        cout << ans[i];
    cout << nln;
}

void view()
{
    string an1 =  sum(a, b);
    string an2 =  sub(a, b);
    string an3 =  mul(a, b);
    printans(an1);
    printans(an2);
    printans(an3);

}

int main()
{
    //openf();
    data();
    process();
    view();
    //closef();
}