int main()
{
	int i,j;
	char num1[N],num2[N],tmp;
	int len1,len2,len_max,len_min;
	int result[N+1]={0};
	scanf("%s%s",num1,num2);
	len1=strlen(num1);
	len2=strlen(num2);
	len_max=len1>len2?len1:len2;
	len_min=len1<len2?len1:len2;
	for(j=0;j<len1/2;j++)
	{
		tmp=num1[j];
		num1[j]=num1[len1-1-j];
		num1[len1-1-j]=tmp;
	}
	for(j=0;j<len2/2;j++)
	{
		tmp=num2[j];
		num2[j]=num2[len2-1-j];
		num2[len2-1-j]=tmp;
	}
	for(j=0;j<len_min;j++)
	{
		result[j]+=num1[j]+num2[j]-'0'-'0';
		if(result[j]>=10)
		{
			result[j+1]+=1;
			result[j]=result[j]%10;
		}
	}
	for(j=len_min;j<len_max;j++)
	{
		if(len_max==len1)
		{
			result[j]+=num1[j]-'0';
			if(result[j]>=10)
			{
				result[j+1]+=1;
				result[j]=result[j]%10;
			}
		}
		else
		{
			result[j]+=num2[j]-'0';
			if(result[j]>=10)
			{
				result[j+1]+=1;
				result[j]=result[j]%10;
			}
		}
	}
	if(result[len_max]==1)
		len_max++;
	for(i=len_max-1;i>=0;i--)
	{
		if(result[i]!=0)
			break;
	}
	if(i>=0)
	{
		for(j=i;j>=0;j--)
			printf("%d",result[j]);
		printf("\n");
	}
	else
		printf("0\n");
	return 0;
}