What's happening here when I enter invalid numbers like 'a'?????

excitinggame.c

#include <stdio.h>

int main() {
	int number;

	while (1) {
		printf("Enter your number: ");
		scanf("%d", &number);

		if (number > 10) {
			printf("It's greater than 10! Excellent!\n");
			break;
		} else {
			printf("You are poor. :( Please cool down and try it again.\n");
		}
	}

	return 0;
}

log

Enter your number: a
You are poor. :( Please cool down and try it again.
Enter your number: You are poor. :( Please cool down and try it again.
Enter your number: You are poor. :( Please cool down and try it again.
Enter your number: You are poor. :( Please cool down and try it again.
Enter your number: You are poor. :( Please cool down and try it again.
Enter your number: You are poor. :( Please cool down and try it again.
Enter your number: You are poor. :( Please cool down and try it again.
Enter your number: You are poor. :( Please cool down and try it again.
Enter your number: You are poor. :( Please cool down and try it again.
Enter your number: You are poor. :( Please cool down and try it again.
Enter your number: You are poor. :( Please cool down and try it again.
Enter your number: You are poor. :( Please cool down and try it again.
Enter your number: You are poor. :( Please cool down and try it again.
Enter your number: You are poor. :( Please cool down and try it again.
Enter your number: You are poor. :( Please cool down and try it again.
Enter your number: You are poor. :( Please cool down and try it again.
Enter your number: You are poor. :( Please cool down and try it again.
Enter your number: You are poor. :( Please cool down and try it again.
Enter your number: You are poor. :( Please cool down and try it again.
Enter your number: You are poor. :( Please cool down and try it again.
Enter your number: You are poor. :( Please cool down and try it again.
Enter your number: You are poor. :( Please cool down and try it again.
Enter your number: You are poor. :( Please cool down and try it again.
Enter your number: You are poor. :( Please cool down and try it again.
Enter your number: You are poor. :( Please cool down and try it again.
Enter your number: You are poor. :( Please cool down and try it again.
Enter your number: You are poor. :( Please cool down and try it again.
Enter your number: You are poor. :( Please cool down and try it again.
Enter your number: You are poor. :( Please cool down and try it again.
Enter your number: You are poor. :( Please cool down and try it again.
Enter your number: You are poor. :( Please cool down and try it again.
Enter your number: You are poor. :( Please cool down and try it again.
Enter your number: You are poor. :( Please cool down and try it again.
Enter your number: You are poor. :( Please cool down and try it again.
Enter your number: You are poor. :( Please cool down and try it again.
Enter your number: You are poor. :( Please cool down and try it again.
Enter your number: You are poor. :( Please cool down and try it again.
Enter your number: You are poor. :( Please cool down and try it again.
Enter your number: You are poor. :( Please cool down and try it again.
Enter your number: You are poor. :( Please cool down and try it again.
Enter your number: You are poor. :( Please cool down and try it again.
Enter your number: You are poor. :( Please cool down and try it again.
Enter your number: You are poor. :( Please cool down and try it again.
Enter your number: You are poor. :( Please cool down and try it again.
Enter your number: You are poor. :( Please cool down and try it again.
Enter your number: You are poor. :( Please cool down and try it again.
...