#include <stdio.h>

int main()
{
	int i, x;
	int number[10]={36, 81, 45, 17, 69, 3, 23, 92, 70, 54};

	while (1)
	{
		printf("Number = ");
		scanf("%d", &x);
		i = 0;
		while ((number[i] != x) && (i < 10))
			i++;
		if (i == 10)
			printf("Not found\n\n");
		else
			printf("Index = %d\n\n", i);
	}

	return 0;
}