Maximum number#3659
You are given a string consisting of digits and possibly a or sign at the beginning of the string. Your task is to obtain the maximum possible number by inserting any of the arithmetic operations , , , or between any two adjacent digits in the string. The operations are performed following the rules for integers as in major programming languages, and there are no restrictions on the range of permissible values.
A single line contains a sequence of characters, which can start with any digit or with a or sign. All other characters are digits. There is at least one digit in the string. The total number of digits in the input does not exceed .
Print the answer as an integer on a single line, without leading zeros or sign, unless necessary.
Example 1