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#include <cstdio>
#include <vector>
#include <algorithm>

using namespace std;

bool carry_out;
vector<int> a, b, r;
int c;

int main(){
    c = getchar();
    while(c != '\n'){
        a.push_back(c - '0');
        c = getchar();
    }
    c = getchar();
    while(c != '\n'){
        b.push_back(c - '0');
        c = getchar();
    }
    while(!a.empty() && !b.empty()){
        r.push_back((a.back() + b.back() + carry_out) % 10);
        carry_out = (a.back() + b.back() + carry_out) >= 10;
        a.pop_back();
        b.pop_back();
    }
    while(!a.empty()){
        r.push_back((a.back() + carry_out) % 10);
        carry_out = (a.back() + carry_out) >= 10;
        a.pop_back();
    }
    while(!b.empty()){
        r.push_back((b.back() + carry_out) % 10);
        carry_out = (b.back() + carry_out) >= 10;
        b.pop_back();
    }
    if(carry_out) r.push_back(1);
    reverse(r.begin(), r.end());
    for(auto i : r) printf("%d", i);
}