double from_str_to_double(const char s[125]) {
    if (s[0] == '-') {
        printf("%s", "It's a SHOP!!! Should be positive! EVERETHING\n");
        return -1;
    }
    int i = 0, sum = 0;
    while (s[i] != '\0') {
        if (s[i] <= '9' && s[i] >= '0' && sum < INT_MAX / 100) {
            sum = sum * 10 + (s[i] - '0');
            i++;
        } else {
            printf("%s", "Should be NUMBER!\n");
            return -1;
        }
    }
    return sum;
}