CF1266A.Competitive Programmer
普及/提高-
通过率:0%
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题目描述
Bob is a competitive programmer. He wants to become red, and for that he needs a strict training regime. He went to the annual meeting of grandmasters and asked n of them how much effort they needed to reach red.
"Oh, I just spent xi hours solving problems", said the i -th of them.
Bob wants to train his math skills, so for each answer he wrote down the number of minutes ( 60⋅xi ), thanked the grandmasters and went home. Bob could write numbers with leading zeroes — for example, if some grandmaster answered that he had spent 2 hours, Bob could write 000120 instead of 120 .
Alice wanted to tease Bob and so she took the numbers Bob wrote down, and for each of them she did one of the following independently:
- rearranged its digits, or
- wrote a random number.
This way, Alice generated n numbers, denoted y1 , ..., yn .
For each of the numbers, help Bob determine whether yi can be a permutation of a number divisible by 60 (possibly with leading zeroes).
输入格式
The first line contains a single integer n ( 1≤n≤418 ) — the number of grandmasters Bob asked.
Then n lines follow, the i -th of which contains a single integer yi — the number that Alice wrote down.
Each of these numbers has between 2 and 100 digits '0' through '9'. They can contain leading zeroes.
输出格式
Output n lines.
For each i , output the following. If it is possible to rearrange the digits of yi such that the resulting number is divisible by 60 , output "red" (quotes for clarity). Otherwise, output "cyan".
输入输出样例
输入#1
6 603 006 205 228 1053 0000000000000000000000000000000000000000000000
输出#1
red red cyan cyan cyan red
说明/提示
In the first example, there is one rearrangement that yields a number divisible by 60 , and that is 360 .
In the second example, there are two solutions. One is 060 and the second is 600 .
In the third example, there are 6 possible rearrangments: 025 , 052 , 205 , 250 , 502 , 520 . None of these numbers is divisible by 60 .
In the fourth example, there are 3 rearrangements: 228 , 282 , 822 .
In the fifth example, none of the 24 rearrangements result in a number divisible by 60 .
In the sixth example, note that 000…0 is a valid solution.