102121: [AtCoder]ABC212 B - Weak Password

Problem Statement

You are given a $4$-digit PIN: $X_1X_2X_3X_4$, which may begin with a $0$. The PIN is said to be weak when it satisfies one of the following conditions:

• All of the four digits are the same.
• For each integer $i$ such that $1\leq i\leq 3$, $X_{i+1}$ follows $X_i$. Here, $j+1$ follows $j$ for each $0\leq j\leq 8$, and $0$ follows $9$.

If the given PIN is weak, print Weak; otherwise, print Strong.

Constraints

• $0 \leq X_1, X_2, X_3, X_4 \leq 9$
• $X_1$, $X_2$, $X_3$, and $X_4$ are integers.

Input

Input is given from Standard Input in the following format:

$X_1X_2X_3X_4$

Output

If the given PIN is weak, print Weak; otherwise, print Strong.

Sample Input 1

7777

Sample Output 1

Weak

All four digits are $7$, satisfying the first condition, so this PIN is weak.

Sample Input 2

0112

Sample Output 2

Strong

The first and second digits differ, and the third digit does not follow the second digit, so neither condition is satisfied.

Sample Input 3

9012

Sample Output 3

Weak

Note that $0$ follows $9$.

问题描述

给你一个$4$位PIN码：$X_1X_2X_3X_4$，它可以以$0$开头。当PIN码满足以下条件之一时，认为它是弱PIN码：

• 四个数字全部相同。
• 对于每个满足$1\leq i\leq 3$的整数$i$，$X_{i+1}$跟随$X_i$。在这里，对于每个$0\leq j\leq 8$，$j+1$跟随$j$，并且$0$跟随$9$。

如果给定的PIN码是弱PIN码，打印Weak；否则，打印Strong。

约束条件

• $0 \leq X_1, X_2, X_3, X_4 \leq 9$
• $X_1$、$X_2$、$X_3$和$X_4$都是整数。

输入

输入以标准输入的方式给出以下格式：

$X_1X_2X_3X_4$

输出

如果给定的PIN码是弱PIN码，打印Weak；否则，打印Strong。

样例输入1

7777

样例输出1

Weak

四个数字都是$7$，满足第一个条件，所以这个PIN码是弱PIN码。

样例输入2

0112

样例输出2

Strong

第一个和第二个数字不同，第三个数字不跟随第二个数字，所以没有条件被满足。

样例输入3

9012

样例输出3

Weak

注意$0$跟随$9$。