After I pinged skittle-chan(bot) in the discord, I got first hint of the challenge.
![image](https://user-images.githubusercontent.com/67140773/164916374-34485564-b406-4ac3-a4cd-b1c5464af305.png)
That hint was referring to Base64. So, I used Cyberchef (https://gchq.github.io/CyberChef/) to decode from Base64.
![image](https://user-images.githubusercontent.com/67140773/164916507-5bd0cea8-71c6-4c72-b8f3-e7b030934208.png)
`$sudo heck heckur`
That was sent to skittle-chan. Then, I got the second hint of the challenge.
![image](https://user-images.githubusercontent.com/67140773/164916801-47e74151-0d0a-400e-b9b7-a80b1162f114.png)
This time the hint was refering to ROT13. So, I used the Cyberchef again to decode with ROT13.
![image](https://user-images.githubusercontent.com/67140773/164916988-56fc8b89-efd5-465a-b811-f53b0692d0b2.png)
`#Begulga_giv_flag_pls_uwu`
Again, that was sent to skittle-chan. Then, I got the final hint of the challenge.
![image](https://user-images.githubusercontent.com/67140773/164917045-e60a413e-8fab-4d76-9134-2fbc7c02b562.png)
This time the hint was refering to Vigenere. So, I used Cyberchef again to decode the Vigenere using 'Beluga' as key.
![image](https://user-images.githubusercontent.com/67140773/164917098-936e2236-749b-42b7-a12e-2af069c4b668.png)
`CUCTF{Skittle_loves_begugla_coz_begula_is_the_best}`
That was the flag that was needed to be submitted.