Corona2020#10029
Ziya loves solving math puzzles. He is particularly interested in puzzles with the number . After some calculations, he found three distinct numbers , , and . Ziya wonders if, by inserting the operators + or - in place of the placeholders (<>) in the expression a <> b <> c, it is possible to obtain the number .
Three integers , , and (1 \leq a, b, c \leq 10^8).
If it is possible to obtain , print an expression of the form a<>b<>c that evaluates to using only the operators + or -. Otherwise, print the word CORONA. There must be no spaces between the numbers and the operators in the expression.
Example 1
Example 2