#include<iostream>
#include<vector>
using namespace std;
vector<int> add(vector<int> &A,vector<int> &B){
if(A.size()<B.size()) return add(B,A);
vector<int> C;
int t=0;
for(int i=0;i<A.size();i++){
t+=A[i];
if(i<B.size()) t+=B[i];
C.push_back(t%10);
t/=10;
}
if(t) C.push_back(t);
return C;
}
int main(){
string a,b;
vector<int> A,B;
cin>>a>>b;
for(int i=a.size()-1;i>=0;i--) A.push_back(a[i]-'0');
for(int i=b.size()-1;i>=0;i--) B.push_back(b[i]-'0');
vector<int> C=add(A,B);
for(int i=C.size()-1;i>=0;i--) cout<<C[i];
return 0;
}
#include <iostream>
#include <vector>
using namespace std;
bool cmp(vector<int> &A, vector<int> &B)
{
if (A.size() != B.size()) return A.size() > B.size();
for (int i = A.size() - 1; i >= 0; i -- )
if (A[i] != B[i])
return A[i] > B[i];
return true;
}
vector<int> sub(vector<int> &A, vector<int> &B)
{
vector<int> C;
int t=0;
for (int i = 0; i < A.size(); i ++ )
{
t = A[i] - t;
if (i < B.size()) t -= B[i];
C.push_back((t + 10) % 10);
if (t < 0) t = 1;
else t = 0;
}
while (C.size() > 1 && C.back() == 0) C.pop_back();
return C;
}
int main()
{
string a, b;
vector<int> A, B;
cin >> a >> b;
for (int i = a.size() - 1; i >= 0; i -- ) A.push_back(a[i] - '0');
for (int i = b.size() - 1; i >= 0; i -- ) B.push_back(b[i] - '0');
vector<int> C;
if (cmp(A, B)) C = sub(A, B);
else C = sub(B, A), cout << '-';
for (int i = C.size() - 1; i >= 0; i -- ) cout << C[i];
cout << endl;
return 0;
}
#include <iostream>
#include <vector>
using namespace std;
vector <int> mul(vector <int> & A, int b) {
vector <int> C;
int t = 0;
for (int i = 0; i < A.size(); i ++) {
t += A[i] * b;
C.push_back(t % 10);
t /= 10;
}
while (t) {
C.push_back(t % 10);
t /= 10;
}
while (C.size() > 1 && C.back() == 0) C.pop_back();
return C;
}
int main() {
string a;
int b;
cin >> a >> b;
vector <int> A;
for (int i = a.size() - 1; i >= 0; i --) A.push_back(a[i] - '0');
auto C = mul(A, b);
for (int i = C.size() - 1; i >= 0; i --) cout << C[i];
return 0;
}
#include <iostream>
#include <vector>
using namespace std;
vector<int> mul(vector<int> &A, vector<int> &B) {
vector<int> C(A.size() + B.size(), 0);
for (int i = 0; i < A.size(); i++)
for (int j = 0; j < B.size(); j++)
C[i + j] += A[i] * B[j];
int t = 0;
for (int i = 0; i < C.size(); i++) {
t += C[i];
C[i] = t % 10;
t /= 10;
}
while (C.size() > 1 && C.back() == 0) C.pop_back();
return C;
}
int main() {
string a, b;
cin >> a >> b;
vector<int> A, B;
for (int i = a.size() - 1; i >= 0; i--)
A.push_back(a[i] - '0');
for (int i = b.size() - 1; i >= 0; i--)
B.push_back(b[i] - '0');
auto C = mul(A, B);
for (int i = C.size() - 1; i >= 0; i--)
cout << C[i];
return 0;
}
#include<iostream>
#include<vector>
#include<algorithm>
using namespace std;
vector<int> div(vector<int> &A,int B,int &r){
vector<int> C;
for(int i=A.size()-1;i>=0;i--){
r=r*10+A[i];
C.push_back(r/B);
r=r%B;
}
reverse(C.begin(),C.end());
while(C.size()>1&&C.back()==0) C.pop_back();
return C;
}
int main(){
string a;
int B,r=0;
cin>>a>>B;
vector<int> A;
for(int i=a.size()-1;i>=0;i--) A.push_back(a[i]-'0');
auto C = div(A,B,r);
for(int i=C.size()-1;i>=0;i--) cout<<C[i];
cout<<endl<<r;
cout<<endl;
return 0;
}