FZU

//水题#include <cstdio>#include <iostream>using namespace std;const int N = 1e4 + 10;int a[N], b[N];int main(){int k, n;scanf("%d", &k);for (int c = 1; c <= k; c++){scanf("%d", &n);for (int i = 0; i < n; i++) scanf("%d", a + i);for (int i = 0; i < n; i++) scanf("%d", b + i);int ans = 0;for (int i = 0; i < n; i++)if (b[i] + a[i] > 10) ans++;printf("Case %d: %d\n", c, ans);}return 0;}