This is game pasted from another forum, It is really simple: you have to rate from 1 to 10 popularity of a user that posted a message above. So, let's start
x=19 x + 1 = 20 (x + 1)^2 = 400 (x + 1)^2 + 41 = 441 sqrt[(x + 1)^2 + 41] = 21 sqrt[(x + 1)^2 + 41]/7 = 3 sqrt[(x + 1)^2 + 41]/7 - 2 = 1 log{sqrt[(x + 1)^2 + 41]/7 - 2} = 0 cos((log{sqrt[(x + 1)^2 + 41]/7 - 2}))=1
