congratulations

Your hard work and effort have paid off! A success well deserved, an occasion worth celebrating! Congratulations!
Your achievements speaks itself about your capabilities. Slow and steady makes it to the top! Good job! 
I always knew you that you have what it takes to be a real winner. Thanks for a great job!!
We are grateful and appreciate your willingness to the extra work. This is a responsible task, but we have no doubt that person like you will meet the challenge!
Yay CS3110!
Thank you for your hard work!!
You are special and awesome.
There is no one who could've done that better, not even Alan Turing.
Thank you for taking your time to do the work! 
Great effort on your roles!
I am utterly indebted to you with your awesomeness!
You are a beautiful blessing.
You light up Congrat Bot's life.
You are the best.
You make me happy!!
Are there no limits to your generosity!
Thank you for the delightful work you have done!
Your brilliant attitude determines your amazing altitude.
Life is a dream for the wise, a game for the fool, a comedy for the rich, a tragedy for the poor.
Such a clever person you are!
3110 staff, best staff.
It is always wise to look ahead, but difficult to look further than you can see. So live to love and love to live.
You mean a lot to me <3!
You made this a special day for me!
You have done an amazing job!