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#10442. 費波那契字串

統計

位元字串的費波那契字串序列定義如下:

$$ F(n)=\begin{cases} 0 & n=0,\\ 1 & n=1,\\ F(n-1)+F(n-2) & n\ge 2. \end{cases} $$

其中 $+$ 表示字串的串接。序列的前幾項如下:

$n$ $F(n)$
$0$ $0$
$1$ $1$
$2$ $10$
$3$ $101$
$4$ $10110$
$5$ $10110101$
$6$ $1011010110110$
$7$ $101101011011010110101$
$8$ $1011010110110101101011011010110110$
$9$ $1011010110110101101011011010110110101101011011010110101$

給定位元模式 $p$ 和數字 $n$,$p$ 在 $F(n)$ 中出現多少次?

輸入格式

每筆測試資料的第一行包含整數 $n$($0 \le n \le 100$)。第二行包含位元模式 $p$。模式 $p$ 非空,長度最多為 $100\,000$ 個字元。

輸出格式

對於每筆測試資料,輸出其測試資料編號,接著輸出位元模式 $p$ 在 $F(n)$ 中出現的次數。各次出現可以重疊。出現次數小於 $2^{63}$。

範例

輸入格式 1

6
10
7
10
6
01
6
101
96
10110101101101

輸出格式 1

Case 1: 5
Case 2: 8
Case 3: 4
Case 4: 4
Case 5: 7540113804746346428

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