#include<stdio.h>

int main()
{
	FILE *fin,*fout;
	int a,b,s;
	if ((fin = fopen("AB.in", "rt")) == NULL)
	{
		 fprintf(stderr, "Cannot open input file.\n");
		 return 1;
	}
	if ((fout = fopen("AB.out", "wt")) == NULL)
	{
		 fprintf(stderr, "Cannot open output file.\n");
		 return 1;
	}
	fscanf(fin,"%d",&a);
	fscanf(fin,"%d",&b);
	s=a+b;
	fprintf(fout,"%d",s);
	return 0;
}