시간 제한 메모리 제한 제출 정답 맞은 사람 정답 비율
2 초 256 MB 31 16 15 53.571%

## 문제

Eva is a third-grade elementary school student. She has just learned how to perform addition and subtraction of arbitrary-precision integers. Her homework is to evaluate some expressions. It is boring, so she decided to add a little trick to the homework. Eva wants to add some plus and minus signs to the expression to make its value as large as possible.

## 입력

The single line of the input file contains the original arithmetic expression. It contains only digits, plus (‘+’) and minus (‘-’) signs.

The original expression is correct, that is:

• numbers have no leading zeroes;
• there are no two consecutive signs;
• the last character of the expression is a digit.

The length of the original expression does not exceed 1000 characters.

## 출력

Output a single line — the original expression with some plus and minus signs added. Output expression must satisfy the same correctness constraints as the original one. Its value must be as large as possible.

## 예제 입력 1

10+20-30


## 예제 출력 1

10+20-3+0


## 예제 입력 2

-3-4-1


## 예제 출력 2

-3-4-1


## 예제 입력 3

+10


## 예제 출력 3

+10