int main(void)
{
    
    char str[BUFSIZ];
    puts();
    fgets(str, sizeof(str), stdin);

    
    long num;
    char buf[BUFSIZ];
    do
    {
        puts();
        fgets(buf, sizeof(buf), stdin);
        num = strtol(buf, NULL, 10);
    } while (num != 75000);

    return EXIT_SUCCESS;
}