#include<stdio.h>
int main()
{
int first reactant;
int second reactant;
if(scanf("%d\n %d\n",&first reactant,&second reactant)!=2)
{
return 1;
}
if(first reactant<=0||second reactant<=0||first reactant>1000||second reactant>1000)
{
printf("Invalid input\n");
}
else
{
int total=first reactant+second reactant;
printf("%d\n",total);
}
return 0;
}