#include<cstdio>
#include<cstring>
using namespace std;
int main()
{
	char a[5005],b[5005],c[5005];
	int x=0;
	int n,nn;
	scanf("%s%s",&a,&b);
	n=strlen(a);
	nn=strlen(b);
	for(int i=0;i<=n||i<=nn;i++)
	{
		c[i]=a[i]+b[i]+x;
		x=c[i]/10;
		c[i]=c[i]%10;
	}
	printf("%s",c);
}