#include<stdio.h>

int sum(int a,int b){
    if(b==0)
            return a;
    return 1+sum(a,b-1);
}

int main(){
    FILE *in;
    FILE *out;
    int a, b;
    in=fopen("adunare.in","r");
    out=fopen("adunare.out","w");
    fscanf(in,"%d",&a);
    fscanf(in,"%d",&b);
    fprintf(out,"%d",sum(a,b));
    fclose(in);
    fclose(out);
    return 0;
}