Ziya suspects that he has contracted coronavirus. In connection with this, he is conducting research on his DNA. As a result of the calculations, he finds out that three different numbers $a, b$ and $c$ are related to his DNA. Ziya believes that if by substituting \textbf{+} or \textbf{-} instead of the signs (\textbf{<>}) into the expression $a <> b <> c$, he can obtain the number $2020$, then he has not contracted the coronavirus. Otherwise, if it is impossible to do so, then he has contracted it. Help Ziya determine if he has contracted the coronavirus. \InputFile Three integers $a, b$ and $c~(1 \le a, b, c \le 10^8)$ are given. \OutputFile If Ziya has not contracted the virus, print the expression $a <> b <> c$, which results in $2020$. Otherwise, print the word \textbf{CORONA}. When outputting the expression, there should be no spaces between the numbers and operators.