#include<bits/stdc++.h> #define int long long using namespace std; string operator + (string s1,string s2){ int a[10096]={0},b[10096]={0},c[10096]={0}; reverse(s1.begin(),s1.end()); reverse(s2.begin(),s2.end()); for(int i=0;i<s1.size();i++) a[i]=s1[i]-'0'; for(int i=0;i<s2.size();i++) b[i]=s2[i]-'0'; int lenc=max(s1.size(),s2.size()); for(int i=0;i<lenc;i++){ c[i]+=a[i]+b[i]; c[i+1]=c[i]/10; c[i]%=10; } if(c[lenc]>0){ lenc++; } string s; for(int i=lenc-1;i>=0;i--){ s.push_back(c[i]+48); } return s; } signed main(){ string s1,s2; cin>>s1>>s2; cout<<s1+s2; return 0; }