#include <stdio.h>
int main()
{
    int freaction,sreaction,total;
    scanf("%d",&reaction);
    scanf("%d",&sreaction);
    if(freaction<=0 || sreaction<=0)
    {
        printf("invalid in put");
    }
    else
    {
        total=freactiion+sreaction;
        printf("%d",total);
    }
}