#include <bits/stdc++.h>

using namespace std;

const int maxn = 10000;

int main() {
    int n, q, x, a[maxn], kase = 0;
    while (scanf("%d%d", &n, &q) == 2 && n) {
        printf("CASE# %d:\n", ++kase);
        for (int i = 0; i < n; i++) scanf("%d", &a[i]);
        //排序
        sort(a, a + n);
        //从后向前找
        while (q--) {
            scanf("%d", &x);
            //lower_bound:
            //https://blog.csdn.net/qq_40160605/article/details/80150252
            int p = lower_bound(a, a + n, x) - a; //在已排序数组a中寻找x
            if (a[p] == x) printf("%d found at %d\n", x, p + 1);
            else printf("%d not found\n", x);
        }
    }
    return 0;
}