This (unpronounceable) word means simply fear of number 666.

You are given a string of digits. Check whether it is scary for a person suffering from this phobia, i.e., whether it contains number 666 as a substring.

Input

The input will consist of a single string p. The string contains between 1 and 100 digits ('0'-'9'), inclusive. The string doesn't contain any other characters except digits.

Output

Output "YES" if given string contains number 666, and "NO" otherwise (quotes for clarity only).

见题面 Input 部分

见题面 Output 部分

Note that 666 must be a contiguous substring of p, not a subsequence (see sample 3).