#include <stdio.h>

FILE* fin;
FILE* fout;

void load()
{
    fin = fopen("adunare.in","r");
    fout = fopen("adunare.out","w");
}

void readAB(unsigned long long* a,unsigned long long* b)
{
    fscanf(fin,"%llu %llu",a,b);
}

void init(unsigned long long* a,unsigned long long* b)
{
    load();
    readAB(a,b);
}

unsigned long long sum(unsigned long long a,unsigned long long b)
{
    return a + b;
}

void write(unsigned long long sum)
{
    fprintf(fout,"%llu",sum);
}

void CloseFiles()
{
    fclose(fin);
    fclose(fout);
}

void Terminate()
{
    CloseFiles();
}

int main()
{
    unsigned long long a;
    unsigned long long b;

    init(&a,&b);
    write(sum(a,b));

    Terminate();

    return 0;
}