def __main__():
    T = int(input())
    for i in range(1, T + 1):
        N = int(input())
        A = [None] * N

        for j in range(0, N):
            A[j] = input()

        print("Case #" + str(i) + ": " + str(repeater(A)))

def repeater(arr):

    count_arr = [0] * len(arr)

    c = 0
    while ???:
        s = 0
        tmpChar = arr[0][count_arr[0]]
        for i in range(0, len(arr)):
            string = arr[i]

            while string[count_arr[i] + 1] == tmpChar:
                count_arr[i] += 1
                s += 1
            else:
                return "Fegla Won"

            sorted = sort(count_arr)
            if len(sorted) % 2 == 1:
                k = len(sorted) - 1 / 2
                for count in count_arr:
                    c += abs(count - sorted[k])
            else:
                v = 0
                bonatti = len(sorted) / 2
                k2 = everest - 1
                for count in count_arr:
                    c += abs(count - sorted[k])