#128. less20

less20

Background

Description

Return true if the given non-negative number is 1 or 2 less than a multiple of 20. So for example 38 and 39 return true, but 40 returns false. See also: Introduction to Mod

Format

Input

Output

Samples

18
true
19
true
20
false

Limitation

1s, 1024KiB for each test case.