#   include<stdio.h>
int main()
{
    int(scanf("%d %d", &mass1, &mass2) != 2 || mass1 < 1 || mass2 < 1 || mass1 > 1000 || mass2 > 1000)
    {
        printf("Invalid input\n");
    }
    else
    {
        int totalMass = mass1 + mass2;
        printf("%d\]n",totalMass);
    }
    return 0;
}
}