#include <iostream>
#include <fstream>
using namespace std;
ifstream fin("sumaxl.in");
ofstream fout("sumaxl.out");
typedef int Huge[101];
void AtribValue(Huge x,unsigned long y)
{
    x[0]=0;
    while(y)
    {
        x[0]++;
        x[x[0]]=y%10;
        y/=10;
    }

}
void Adunare(Huge x,Huge y)
{
    int i,t=0;
    if(x[0]<y[0])
        {
            x[0]=y[0];
        }
    for(i=1;i<=x[0];i++,t/=10)
    {
        x[i]=(t+=x[i]+y[i])%10;
    }
    if(t)
        x[++x[0]]=t;
}
Huge S,Y;
int main()
{
int y,i;
fin>>S[0];
for(i=S[0];i>=1;i--)
    fin>>S[i];
fin>>y;
AtribValue(Y,y);
Adunare(S,Y);
for(i=S[0];i>=1;i--)
    fout<<S[i];
    return 0;
}