#include <stdio.h>

int main() {
    char *inFileName = "adunare.in";
    char *outFileName = "adunare.out";
    FILE *in = fopen(inFileName, "r");
    if (in == NULL) {
        printf("Cannot open %s.\n", inFileName);
        return 1;
    }
    FILE *out = fopen(outFileName, "w");
    int a;
    int b;
    fscanf(in, "%d %d", &a, &b);
    fprintf(out, "%d", a + b);
    fclose(in);
    fclose(out);
    return 0;
}