#include <bits/stdc++.h>
using namespace std;
typedef long long ll;

inline int rd() {
    int x = 0;
    bool f = 0;
    char c = getchar();
    for (; !isdigit(c); c = getchar()) f |= (c == '-');
    for (; isdigit(c); c = getchar()) x = x * 10 + (c ^ 48);
    return f ? -x : x;
}

int cnt[7];

inline void work() {
    memset(cnt, 0, sizeof(cnt));
    int n = rd();
    for (int i = 1; i <= n; ++i) ++cnt[rd()];

    int mx = 0;
    for (int i = 1; i <= 6; ++i) mx = max(mx, cnt[i]);
    if (mx <= 1) memset(cnt, 0, sizeof(cnt));

    for (int i = 1; i <= n; ++i) ++cnt[rd()];
    mx = 0;
    for (int i = 1; i <= 6; ++i) mx = max(mx, cnt[i]);

    if (mx <= 1) {puts("Just a game of chance."); return;}
    puts("Win!");
}

int main() {
    for (int t = rd(); t; --t) work();
    return 0;
}