#include <stdio.h>

int search(int a[], int length, int x) {
 /* x is a query number */
   int i;

   for (i=0;i<length;i++) {
      if (x == a[i]) {
         return i;
      }
   }

   return  -1;
}


int main() {

 int m;
 int index;
 int a[10] = {3, 4, 5, 6, - 10, 101, 76, 83, -1, 67};
 /*int b[] = {2,4, 8, 16, 14 ,12, 4, 7, 0};*/

 do {
    printf("Enter number: ");
    scanf("%d", &m);
    if (m != 0) {
      index = search(a, 10, m);
      if (index>=0) {
         printf("Found: a[%d] = %d\n", index, m);
      }
      else {
         printf("Not Found\n");
      }
    }
 } while (m != 0); 


 return 0;
}