题目描述Description

You are given a string S of length N consisting of uppercase and lowercase English letters.

Find the position where Jiangly first appears as a (contiguous) substring in S.

In other words, find the smallest integer n that satisfies all of the following conditions.

• 1\le n\le N - 6
• The string obtained by extracting the n-th through (n + 6)-th characters of S is Jiangly.

If Jiangly does not appear in S, print xiaoheizi

输入格式Input

The input is given from Standard Input in the following format:

S

• 6\le |S|\le 100 (|S| is the length of the string S.)
• Each character of S is an uppercase or lowercase English letter.

输出格式Output

Print the position where Jiangly first appears as a substring in S, or xiaoheizi if it does not appear in S.

样例Sample

来源Source