Check for Three Consecutive 'o's

You are given a string S of length N, where each character of S is either o or x.

Your task is to determine whether S contains three consecutive o characters.

The condition can be mathematically expressed as checking if there exists an index \( i \) such that:

\[ S_i = S_{i+1} = S_{i+2} = o \]

If such an index exists, print Yes, otherwise print No.

inputFormat

The input consists of a single line containing the string S.

Note: S contains only the characters o and x.

outputFormat

Output Yes if the string S contains three consecutive o characters, otherwise output No.

sample

oxoxo

No