#include<stdlib.h>
#include<stdio.h>
int main(){
	
	int a,b,sum;
	FILE *f,*g;
	
	f=fopen("adunare.in","r+");
	g=fopen("adunare.out","w+");
	
	if(!f || !g)
		return 1;
	
	
	int cit=fscanf(f,"%d%d",&a,&b);
	if(cit==2){
		sum=a+b;
		fprintf(g,"%d",sum);
	}
	
	fclose(f);
	fclose(g);

	return 0;
}