10187번 - Golden 다국어

문제

There are many special irrational numbers in nature. One is the “golden ratio” represented by the Greek letter phi, φ, which has a value of

φ = (1 + √5) / 2 = 1.61803399.....

Given 2 real numbers, determine whether their ratio is equal (or close to) the golden ratio. For this program, use ±1% as the tolerance.

입력

The first line will contain the number of data sets. Each data set consists of 2 real numbers (with or without decimals).

출력

Either print out “golden” or “not” for each data set.

제한

힌트