#P470B. Hexakosioihexekontahexaphobia
Hexakosioihexekontahexaphobia
Description
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).
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).
Samples
123098
NO
16660
YES
1606061
NO
Note
Note that 666 must be a contiguous substring of p, not a subsequence (see sample 3).