#include <stdio.h>
#include <ctype.h>
const char* PROMPT = "Enter number of days (or q to quit): ";

int main(void)
{
	int days, weeks, remaining, status;
	printf(PROMPT);
	status = scanf("%d", &days);

	while (status == 1)
	{
		weeks = days / 7;
		remaining = days % 7;
		printf("%d days are %d weeks, %d days.\n", days, weeks, remaining);

		printf(PROMPT);
		status = scanf("%d", &days);
	}

	return 0;
}