# Instructions
Your task is to convert an input number into an output string. The output strings will be primary colors that correspond to certain potential factors. A factor is a number that evenly divides into another number, leaving no remainder.
The rules for colors are that if the input number:
- has 5 as a factor, the word "Red" should be print.- has 7 as a factor, the word "Blue" should be print.- has 9 as a factor, the word "Yellow" should be print.- _does not_ have any of 5, 7, or 9 as a factor, the word "Black" should be print.
All input numbers should be cast to an integer, if the input is not a number, an exception should handle it and all that should be print is the value of the error variable provided
## Examples
- 18 has 9 as a factor, but not 5 or 7, so the print would be "Yellow".- 35 has both 5 and 7 as factors, but not 9, so the result would be "RedBlue".- 34 is not factored by 5, 7, or 9, so the result would be "Black"
## Important Notes
- **When multiple colors are print, the color order should be from lowest numbered color to highest**- **Do not change the input message or error message**- **Do not print out anything other than the error or the colour answer**- **Outputs with multiple colours should have no spaces or new lines between colour words**
## Example Outputs`Enter a number: 18`
`Yellow`
`Enter a number: 35`
`RedBlue`
`Enter a number: 34`
`Black`