#include<stdio.h>
int main()
{
    int mass1, mass2;
    scanf("%d %d", &mass1, &mass2);
    if(mass1<=1||mass2<=1)
    {
        printf("Invalid input");
    }
    else
    {
      Totalmass = mass1 + mass2;
      printf("%d",Totalmass);
    }
    return 0;
}