#include <stdio.h>

/* return the index of number x in array a or -1 if not found */
int search(int x, int size, int *a)
{
    int i;
    for (i = 0; i < size; i++)
        if (a[i] == x)
            return i;
    return -1;
}

int main()
{
    int i, a[10], x;

    for (i = 0; i < 10; i++)
        scanf("%d", &a[i]);

    while (printf("Search for: "), scanf("%d", &x) == 1)
        printf("search for %d yields %d\n", x, search(x, 10, a));

    return 0;
}