FILE *fp;
    fp = fopen("C:\Python\Peresechtriangle\Logger.txt", "w");
    if (fp == NULL) {
    printf("could not open file");
    }
    else {
    fgets (fp, 23 , "Еriangle coordinates:\r\n");
    fscanf(fp, "%f%f\r\n%f%f\r\n%f%f\r\n", &C.a.x, &C.a.y, &C.b.x, &C.b.y, &C.c.x, &C.c.y);
    fclose(fp);
    }