302439: CF470B. Hexakosioihexekontahexaphobia

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.

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

123098

NO

16660

YES

1606061

NO

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