#include<bits/stdc++.h>
using namespace std;
char a[500],b[500];
int num_a[200],num_b[200],ans[200];
int main()
{
    scanf("%s %s",a,b);
    int la = strlen(a),lb=strlen(b);
    int check = 1;
    int inda = 0;
    for(int i=la-1;i>=0;i--){
        int num = a[i]-'0';
        if(check == 1){
            num_a[inda] += num;
            check++;
        }
        else if(check == 2){
            num_a[inda] += (num*10);
            check++;
        }
        else if(check == 3){
            num_a[inda] += (num*100);
            check=1;
            inda++;
        }
    }
    if(check==1) inda--;
    int indb=0;
    check=1;
    for(int i=lb-1;i>=0;i--){
        int num = b[i]-'0';
        if(check == 1){
            num_b[indb] += num;
            check++;
        }
        else if(check == 2){
            num_b[indb] += (num*10);
            check++;
        }
        else if(check == 3){
            num_b[indb] += (num*100);
            check=1;
            indb++;
        }
    }
    if(check==1) indb--;
    int tod=0;
    int stop = max(inda,indb);
    for(int i=0 ;i<=stop;i++){
        if(tod == 1){
            num_a[i]++;
        }
        tod=0;
        ans[i] = num_a[i] + num_b[i] ;
        if(ans[i] >= 1000){
            tod=1;
            ans[i] -=1000;
        }
    }

    for(int i=stop;i>=0;i--){
        if(i==stop) printf("%d",ans[i]);
        else printf("%0.3d",ans[i]);
    }
    return 0;
}